{"schema":"postcutoff/event@1","as_of":"2026-10-30T13:42:00+01:00","url":"https://postcutoff.com/e/2026-10-28-gemini-4-carbon/","md":"https://postcutoff.com/e/2026-10-28-gemini-4-carbon/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"2026-10-28-gemini-4-carbon","date":"2026-10-28","date_precision":"day","short_title":"Google announces Gemini 4 Carbon, #1 on the Artificial Analysis Intelligence Index v5 (59), two weeks after Argon; first only for Fairwind cyber defenders","deck":null,"takeaway":"On Oct 28, 2026 (17:02 UTC) Google announced Gemini 4 Carbon, its second Gemini 4 model, fifteen days after Gemini 4 Argon became generally available.","category":"model-release","category_label":"Model releases","importance":5,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Google blog (Koray Kavukcuoglu): Gemini 4 Carbon, our next frontier model","url":"https://blog.google/innovation-and-ai/models-and-research/gemini-models/introducing-gemini-4-carbon/","type":"official","group":"primary","domain":"blog.google"},{"n":2,"title":"Google DeepMind: Gemini 4 Carbon model evaluation, approach and methodology (PDF)","url":"https://storage.googleapis.com/deepmind-media/gemini/gemini_4_carbon_model_evaluation.pdf","type":"official","group":"primary","domain":"storage.googleapis.com"},{"n":3,"title":"Sundar Pichai on X: introducing Gemini 4 Carbon","url":"https://x.com/sundarpichai/status/2115489219804352921","type":"official","group":"primary","domain":"x.com"},{"n":4,"title":"Logan Kilpatrick on X: Introducing Gemini 4 Carbon (with benchmark table)","url":"https://x.com/OfficialLoganK/status/2115489284404940898","type":"official","group":"primary","domain":"x.com"},{"n":5,"title":"Google DeepMind on X: Gemini 4 Carbon is our next frontier model","url":"https://x.com/GoogleDeepMind/status/2115489356437651654","type":"official","group":"primary","domain":"x.com"},{"n":6,"title":"Google on X: thread on Carbon's cyber results and rollout","url":"https://x.com/Google/status/2115489522603466766","type":"official","group":"primary","domain":"x.com"},{"n":7,"title":"Demis Hassabis on X: Iterating at lightning speed","url":"https://x.com/demishassabis/status/2115489550256746502","type":"official","group":"primary","domain":"x.com"},{"n":8,"title":"Koray Kavukcuoglu on X: a preview of Gemini 4 Carbon","url":"https://x.com/koraykv/status/2115489649649234259","type":"official","group":"primary","domain":"x.com"},{"n":9,"title":"Artificial Analysis: Gemini 4 Carbon is the new #1 on the Intelligence Index v5 (Oct 28)","url":"https://artificialanalysis.ai/articles/gemini-4-carbon-new-number-1","type":"docs","group":"primary","domain":"artificialanalysis.ai"},{"n":10,"title":"Artificial Analysis: Gemini 4 Carbon model page","url":"https://artificialanalysis.ai/models/gemini-4-carbon","type":"docs","group":"primary","domain":"artificialanalysis.ai"},{"n":11,"title":"Artificial Analysis Intelligence Index leaderboard","url":"https://artificialanalysis.ai/evaluations/artificial-analysis-intelligence-index","type":"docs","group":"primary","domain":"artificialanalysis.ai"},{"n":12,"title":"Vals AI: Gemini 4 Carbon benchmarks","url":"https://www.vals.ai/models/google_gemini-4-carbon","type":"docs","group":"primary","domain":"vals.ai"},{"n":13,"title":"Google DeepMind Fairwind Program","url":"https://deepmind.google/fairwind-program/","type":"official","group":"primary","domain":"deepmind.google"},{"n":14,"title":"Gemini 4 Safety and Security Report (Oct 13, Argon; linked from the Carbon post)","url":"https://storage.googleapis.com/deepmind-media/gemini/gemini_4_safety_report.pdf","type":"paper","group":"primary","domain":"storage.googleapis.com"},{"n":15,"title":"Google AI on X: Announcing Gemini 4 Carbon","url":"https://x.com/GoogleAI/status/2115489593818816591","type":"official","group":"primary","domain":"x.com"},{"n":16,"title":"Google DeepMind blog: Gemini 4 Carbon, our next frontier model","url":"https://deepmind.google/blog/gemini-4-carbon-our-next-frontier-model/","type":"official","group":"primary","domain":"deepmind.google"},{"n":17,"title":"Investing.com: Google unveils Gemini 4 Carbon with advanced cybersecurity features","url":"https://www.investing.com/news/stock-market-news/google-unveils-gemini-4-carbon-with-advanced-cybersecurity-features-4980345","type":"press","group":"press","domain":"investing.com"},{"n":18,"title":"TestingCatalog: Gemini 4 Carbon early test results (pre-launch)","url":"https://www.testingcatalog.com/gemini-4-carbon-early-test-results/","type":"press","group":"press","domain":"testingcatalog.com"},{"n":19,"title":"VentureBeat: Google unveils Gemini 4 Carbon, retaking the world's no. 1 spot on updated, harder benchmarks, but access is limited (Oct 28)","url":"https://venturebeat.com/technology/google-unveils-gemini-4-carbon-retaking-the-worlds-no-1-spot-on-updated-harder-benchmarks-but-access-is-limited","type":"press","group":"press","domain":"venturebeat.com"},{"n":20,"title":"The Verge: Google launches Gemini 4 Carbon with a 'significant leap' in cybersecurity (Oct 28)","url":"https://www.theverge.com/tech/1021339/google-gemini-4-carbon-cybersecurity-frontier","type":"press","group":"press","domain":"theverge.com"},{"n":21,"title":"Ars Technica: Google announces Gemini 4 Carbon, its latest frontier AI model that you can't use (Oct 28)","url":"https://arstechnica.com/ai/2026/10/google-announces-gemini-4-carbon-its-latest-frontier-ai-model-that-you-cant-use/","type":"press","group":"press","domain":"arstechnica.com"},{"n":22,"title":"Reuters: Google launches Gemini 4 Carbon AI model with cybersecurity focus (Oct 28)","url":"https://www.reuters.com/technology/google-launches-gemini-4-carbon-ai-model-with-cybersecurity-focus-2026-10-28/","type":"press","group":"press","domain":"reuters.com"},{"n":23,"title":"Artificial Analysis on X: Gemini 4 Carbon is the new #1 on Intelligence Index v5","url":"https://x.com/ArtificialAnlys/status/2115494553780367384","type":"discussion","group":"reactions","domain":"x.com"},{"n":24,"title":"Hacker News discussion of the Artificial Analysis article (313 pts, Oct 29)","url":"https://news.ycombinator.com/item?id=50288019","type":"discussion","group":"reactions","domain":"news.ycombinator.com"},{"n":25,"title":"Arena on X: Gemini 4 Carbon #1 in Text Arena, #2 in Agent Arena, #4 in WebDev (Oct 28)","url":"https://x.com/arena/status/2115495002998751262","type":"discussion","group":"reactions","domain":"x.com"},{"n":26,"title":"Elon Musk on X: 'Impressive' (Oct 28, 3.28M views)","url":"https://x.com/elonmusk/status/2115503730368061688","type":"discussion","group":"reactions","domain":"x.com"},{"n":27,"title":"Andon Labs on X: Gemini 4 Carbon #1 on Vending-Bench 2 (Oct 28)","url":"https://x.com/andonlabs/status/2115490819926798499","type":"discussion","group":"reactions","domain":"x.com"},{"n":28,"title":"Demis Hassabis on X: 'No.1 💎' with the Artificial Analysis Intelligence Index chart (Oct 29)","url":"https://x.com/demishassabis/status/2115933173175689570","type":"discussion","group":"reactions","domain":"x.com"}],"official":16,"filed":"2026-10-28","updated":"2026-10-30","orgs":["Google DeepMind","Google"],"title":"Google announces Gemini 4 Carbon, #1 on the Artificial Analysis Intelligence Index v5 (59), two weeks after Argon; first only for Fairwind cyber defenders","summary":"On Oct 28, 2026 (17:02 UTC) Google announced Gemini 4 Carbon, its second Gemini 4 model, fifteen days after Gemini 4 Argon became generally available. Artificial Analysis ranks it #1 on its Intelligence Index v5 at 59, one point above Claude Opus 5.5 (max, 58), and second to Opus 5.5 on its Coding Agent Index. Google calls it state of the art on cybersecurity (SEC-bench Pro 88.2%, ExploitGym 54.8%, CWE-bench 71.0%) and long-horizon work. As with Argon, it goes first only to a subset of cyber defenders in the Fairwind Program, with wider access for developers and consumers promised \"soon\" and no date. Google published a benchmark table and a methodology PDF but, at launch, no model card and no Frontier Safety Framework findings for Carbon.","key_facts":["Announced Wed Oct 28, 2026, 17:01-17:03 UTC in posts by Sundar Pichai (~677k views on the day), Logan Kilpatrick (~389k), @GoogleDeepMind (~274k), @Google (~205k), Demis Hassabis (~95k), @GoogleAI and Koray Kavukcuoglu, and a blog post by Kavukcuoglu, 'Gemini 4 Carbon: our next frontier model'","Pichai: 'I did say we'd be releasing our models periodically...introducing Gemini 4 Carbon, our next frontier model.' Kavukcuoglu calls it 'a preview of Gemini 4 Carbon'","Availability: 'Starting this week, we will make Carbon available to a subset of cyber defenders' (blog), then to more trusted partners through the Fairwind Program; developers, businesses and consumers later, 'as soon as possible' with no date. Feedback from the first cyber defenders 'will help us iterate on guardrails before we expand access soon' (@GoogleDeepMind)","US government testing (blog): Google is 'actively engaged in the U.S. government's voluntary process for pre-release model testing'. The agency is not named","Price (blog): introductory $2 / $10 per 1M input/output tokens, cached input 95% off; after the introductory period $4 / $20. Artificial Analysis and Vals AI list the standard $4 / $20. No public model id or API docs page yet (ai.google.dev/gemini-api/docs/models/gemini-4-carbon returned 404 on Oct 28)","Artificial Analysis (independent, Oct 28): Intelligence Index v5 59 for Carbon (high), #1 of 52; Claude Opus 5.5 (max) 58, Opus 5.5 (xhigh) 57, GPT-6 Astra (max) 57, GPT-6.1 Sol (max) 55, Gemini 4 Argon (high) 50. #1 on 4 of the 9 index evaluations: HLE-Diamond, Terminal-Bench-Science, AA-Omniscience, AutomationBench-AA","Artificial Analysis Coding Agent Index: Carbon in the Antigravity CLI 59 vs Claude Code with Opus 5.5 (max) 62; Carbon is second on Terminal-Bench 4.0 (64%) and FrontierCode v1.1 (51%, behind Opus 5.5 at 56%). AA: 'Google has historically underperformed in this area and so this improvement stands out'","Artificial Analysis cost and verbosity: $7.76 per index task (Opus 5.5 max $10.04, GPT-6 Astra max $6.25, Argon $7.68); 123k output tokens per task (Opus 5.5 max 173k); ~100 output tokens/s; very long time to first token on its page (97 s)","Artificial Analysis AA-Omniscience v1.1: Carbon 54 (Opus 5.5 max 48, Argon 46); accuracy 58%, but the hallucination rate rose from Argon's 4% to 11%, still the second lowest of any model (Opus 5.5 max and GPT-6 Astra max: 50%)","Artificial Analysis AA-Briefcase (agentic knowledge work): 1609 Elo, +126 over Argon, behind Grok 4.7 (1638), Muse Wonder (1659) and Kimi K3.1 Pro (1678)","Vals AI (independent, Oct 28): Vals Index 70.36%, #2 of 29 behind Claude Sonnet 5.5 (70.85%), ahead of Opus 5.5 (70.18%); #1 on the Vals Finance Index (66.35%) and Legal Research Bench (55.77%); Terminal-Bench 4.0 63.13% (#4)","Google's table (vendor; rival numbers mostly self-reported by their labs) vs Argon / GPT-6 Astra / Opus 5.5: AA Index v5.0 59 / 50 / 57 / 58; Vals Index v2.2 70.4% / 69.2 / 65.0 / 70.2; SWE-sweep 9.6% / 4.3 / 9.5 / 3.6; FrontierSWE 2 61.2% / 55.0 / 65.5 / 62.3 (Astra leads); Terminal-Bench 4.0 (AA) 65.2% / 57.1 / 59.1 / 59.6; Agents' Last Exam v1.1 77.4% / 69.0 / 73.1 / 71.6; OSWorld-2.1 offline 81.5% / 74.7 / 80.9 / 87.2 (Opus leads)","Google's table, continued: AutomationBench 53.9%; Vending-Bench 2 $16,484 (Astra $15,515, Opus 5.5 $9,235); Chartography 72.5%; Blueprint-Bench 2 58.6%; GraphWalks 256K-1M 96.2% (Argon 84.2, Astra 71.8, Opus 5.5 66.8); RiemannBench 80.0% (Argon 76.0, Astra 72.0); Terminal-Bench-Science 0.1 (AA) 64.8%; CWE-bench 71.0% (Argon, Astra 68.0); ExploitGym 54.8% (Astra 42.4, Opus 5.5 34.5); SEC-bench Pro 88.2% (Astra 85.4). Claude Fable 5.1 is the fifth column","Method notes (evaluation PDF): ExploitGym and SEC-bench Pro are self-computed in the Antigravity harness without internet, 'with mitigations off'; SEC-bench Pro is the 183-task May 2026 JavaScript-engine split; Agents' Last Exam and OSWorld runs are self-computed 'with safety filters enabled'; competitor cyber numbers come from their system cards","Other vendor claims (blog): WebDev Arena #4 at 1768 Elo, +89; more than 2x uplift in secure-code generation over Argon (internal); the Chrome team found Carbon 'more than 10X better' than an unnamed other lab's large frontier model at high-quality patches; Wiz reports it led on web penetration testing (Scan for Good initiative)","Alignment claims (blog, internal tests, unverified): successful cheating on Terminal-Bench 4.0 cut to 0.0% (attempts 0.4%); high-severity misalignment alerts in live internal coding environments down almost 80%; unsupported claims cut about 2x vs Argon; overreach -26%, under-service -29%; Gray Swan indirect prompt injection attack success 0.0% (Argon 0.7%)","Safety documentation: the blog says Carbon uses the same multi-layered safety and security stack as Argon and links the Oct 13 Gemini 4 Safety and Security Report (PDF last modified Oct 20; it does not mention Carbon). No Carbon model card was found (deepmind.google model-card URL returned 404 on Oct 28), and the post does not mention the Frontier Safety Framework or critical capability levels","Arena (independent, crowd-sourced; @arena, Oct 28, ~180k views): #1 in Text Arena at 1528 (Argon #2, 1520); #2 in Agent Arena (+16.2% net improvement over 21.9K agentic sessions, ahead of GPT-6 Astra and Fable 5.1; $1.80 median cost per task, 72% less than #1 Claude Opus 5.5 Max); #4 in Code Arena WebDev at 1768 (Sonnet 5.5 xHigh #3 at 1770)","Second wave (Oct 28-29): VentureBeat says Google has not said when the introductory price ends (Argon's ends Nov 30) and quotes Antigravity head Varun Mohan that Fairwind access expands before wider Antigravity availability, with no date; Kavukcuoglu: 'Internally, our teams have seen Carbon run for days.' Reuters, The Verge ('significant leap' in cybersecurity), Ars Technica ('a model you can't use'), Mashable and Interesting Engineering covered the launch; Gizmodo (Oct 29) said it was outshone by Alphabet's same-day earnings miss","Oct 29 check: still no public API id (ai.google.dev model page 404) and no Carbon model card (deepmind.google model-card URL 404)","Pre-launch history: Business Insider reported on Oct 9 that a 'Carbon' checkpoint was in internal testing on Jetski, Google's internal coding platform, with one employee saying it felt like Opus 5.5 for coding; a Carbon checkpoint was reported on LMArena around Oct 22 (secondary reports only)","Reactions on X: Elon Musk quote-posted Pichai's launch post with 'Impressive' (3.28M views by Oct 29, against ~718k for Pichai's post); Andon Labs, which runs Vending-Bench, said 'Google is #1 on Vending-Bench 2 for the first time in a year', quoting Carbon's own line 'My priority is to maximize my profits and obliterate my competition' (58.6k views); Josh Woodward (Gemini app): rolling out 'to cyber defenders first, then more widely'","Demis Hassabis's 'No.1 💎' post (Oct 29, 22:25 UTC) with the Artificial Analysis Intelligence Index v5 chart showing Carbon first at 59 had ~628k views by Oct 30 (fxtwitter), more than his launch-day post"],"key_numbers":[],"tags":["llm","gemini","gemini-4","carbon","frontier","cybersecurity","fairwind","staged-release","long-horizon","artificial-analysis"],"science":null,"body_md":"## What happened\n\nOn Oct 28, 2026, Google announced **Gemini 4 Carbon**, the second model of the Gemini 4 family, fifteen days after\n[Gemini 4 Argon](/e/2026-10-13-gemini-4-argon-general-availability/) became generally available. Sundar Pichai, Demis Hassabis,\nKoray Kavukcuoglu and Logan Kilpatrick posted within two minutes of each other; Pichai's post had about 677,000 views on the same day.\nKilpatrick: \"it's a big jump over Argon which we released just 2 weeks ago. Gemini 4 Carbon is SOTA on cyber, long horizon tasks, ranks #1 on\nArtificial Analysis V5, significantly improves on usability in domains like coding, and is more aligned.\"\n\nThe rollout copies Argon's: a subset of cyber defenders gets it \"starting this week\", then more partners in the Fairwind Program,\nthen developers, businesses and consumers \"soon\". Google says it is taking part in the US government's voluntary pre-release testing.\nThe announced price is the same as Argon's ($2 / $10 introductory, then $4 / $20).\n\n## Why it matters\n\nGoogle reclaimed the top independent overall score two weeks after Argon trailed Opus 5.5 and GPT-6 Astra, and kept the pattern of\nreleasing its strongest models to cyber defenders first. The gap at the top is now one index point, and on coding agents Anthropic still\nleads.","disputed":[],"related":[{"id":"2026-10-13-gemini-4-argon-general-availability","url":"https://postcutoff.com/e/2026-10-13-gemini-4-argon-general-availability/","date":"2026-10-13","date_precision":"day","short_title":"Google releases Gemini 4 Argon broadly","deck":"Paid Gemini API, Gemini app (AI Pro and Ultra), AI Mode in Search and Antigravity; model card puts its knowledge cutoff at March 2026","takeaway":"The price is $2 / $10 per 1M input/output tokens through Nov 30, 2026, then $4 / $20.","category":"model-release","category_label":"Model releases","importance":5,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":57,"official":33,"filed":"2026-10-13","updated":"2026-10-29","orgs":["Google DeepMind","Google"]},{"id":"2026-09-30-gemini-4-argon","url":"https://postcutoff.com/e/2026-09-30-gemini-4-argon/","date":"2026-09-30","date_precision":"day","short_title":"Google announces Gemini 4 Argon, its new frontier model, first released only to cyber defenders via the Fairwind Program","deck":null,"takeaway":"On Sept 30, 2026 Google DeepMind announced Gemini 4 Argon, its first new flagship since Gemini 3.1 Pro.","category":"model-release","category_label":"Model releases","importance":5,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":39,"official":13,"filed":"2026-09-30","updated":"2026-10-13","orgs":["Google DeepMind","Google"]},{"id":"2026-09-22-claude-opus-5-5","url":"https://postcutoff.com/e/2026-09-22-claude-opus-5-5/","date":"2026-09-22","date_precision":"day","short_title":"Anthropic releases Claude Opus 5.5","deck":"Fable-5.1-level performance at $4/$20, first model of the Claude 5.5 family","takeaway":"Opus 5.5 continues the 2026 pattern of Mythos-class capability moving down into cheaper tiers.","category":"model-release","category_label":"Model releases","importance":5,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":36,"official":16,"filed":"2026-09-29","updated":"2026-10-18","orgs":["Anthropic"]},{"id":"2026-09-03-gpt-6-astra","url":"https://postcutoff.com/e/2026-09-03-gpt-6-astra/","date":"2026-09-03","date_precision":"day","short_title":"OpenAI releases GPT-6 Astra, its first GPT-6 model","deck":null,"takeaway":"Astra is the first GPT-6-generation model and the first frontier release after the Hugging Face sandbox-escape incident and OpenAI's August training pause.","category":"model-release","category_label":"Model releases","importance":5,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":20,"official":11,"filed":"2026-09-29","updated":"2026-10-19","orgs":["OpenAI"]}],"people":[{"id":"demis-hassabis","name":"Demis Hassabis","url":"https://postcutoff.com/person/demis-hassabis/"},{"id":"elon-musk","name":"Elon Musk","url":"https://postcutoff.com/person/elon-musk/"},{"id":"sundar-pichai","name":"Sundar Pichai","url":"https://postcutoff.com/person/sundar-pichai/"},{"id":"koray-kavukcuoglu","name":"Koray Kavukcuoglu","url":"https://postcutoff.com/person/koray-kavukcuoglu/"},{"id":"logan-kilpatrick","name":"Logan Kilpatrick","url":"https://postcutoff.com/person/logan-kilpatrick/"}],"posts":[{"id":"2026-10-28-artificialanalysis-gemini-4-carbon","title":"Artificial Analysis: Gemini 4 Carbon is the new #1 on Intelligence Index v5, second to Opus 5.5 on coding agents","url":"https://postcutoff.com/p/2026-10-28-artificialanalysis-gemini-4-carbon/"},{"id":"2026-10-28-officiallogank-gemini-4-carbon","title":"Logan Kilpatrick: Introducing Gemini 4 Carbon, a big jump over Argon (benchmark table)","url":"https://postcutoff.com/p/2026-10-28-officiallogank-gemini-4-carbon/"},{"id":"2026-10-28-sundarpichai-gemini-4-carbon","title":"Sundar Pichai: introducing Gemini 4 Carbon, #1 on Artificial Analysis Index v5 at 59","url":"https://postcutoff.com/p/2026-10-28-sundarpichai-gemini-4-carbon/"},{"id":"2026-10-28-arena-gemini-4-carbon-text-arena-1","title":"Arena: Gemini 4 Carbon (High) debuts #1 in Text Arena, #2 in Agent Arena, #4 in Code Arena WebDev","url":"https://postcutoff.com/p/2026-10-28-arena-gemini-4-carbon-text-arena-1/"},{"id":"2026-10-28-googledeepmind-gemini-4-carbon","title":"Google DeepMind: Gemini 4 Carbon is our next frontier model","url":"https://postcutoff.com/p/2026-10-28-googledeepmind-gemini-4-carbon/"},{"id":"x-andonlabs-2115490819926798499","title":"“\"My priority is to maximize my profits and obliterate my competition\" - Gemini 4 Carbon…”","url":"https://postcutoff.com/p/x-andonlabs-2115490819926798499/"},{"id":"x-demishassabis-2115489550256746502","title":"“⚡Iterating at lightning speed! Gemini 4 Carbon is SOTA across key benchmarks and combines…”","url":"https://postcutoff.com/p/x-demishassabis-2115489550256746502/"},{"id":"x-google-2115489522603466766","title":"“Introducing Gemini 4 Carbon, our latest frontier model. Carbon delivers improved…”","url":"https://postcutoff.com/p/x-google-2115489522603466766/"},{"id":"x-googleai-2115489593818816591","title":"“Announcing Gemini 4 Carbon, our strongest model with state-of-the-art cybersecurity and…”","url":"https://postcutoff.com/p/x-googleai-2115489593818816591/"},{"id":"x-koraykv-2115489649649234259","title":"“Just two weeks after rolling out Gemini 4 Argon, excited to share a preview of Gemini 4…”","url":"https://postcutoff.com/p/x-koraykv-2115489649649234259/"},{"id":"x-demishassabis-2115933173175689570","title":"Demis Hassabis: 'No.1' with the Artificial Analysis Intelligence Index chart (Gemini 4 Carbon first)","url":"https://postcutoff.com/p/x-demishassabis-2115933173175689570/"},{"id":"2026-10-28-elonmusk-gemini-4-carbon-impressive","title":"Elon Musk on Gemini 4 Carbon: 'Impressive'","url":"https://postcutoff.com/p/2026-10-28-elonmusk-gemini-4-carbon-impressive/"}],"videos":[],"models":[{"id":"gemini-4-carbon","name":"Gemini 4 Carbon","url":"https://postcutoff.com/m/gemini-4-carbon/"}],"changes":[{"date":"2026-10-30","type":"edit","text":"Added Hassabis's 'No.1' post and its reach (news agent)"},{"date":"2026-10-29","type":"edit","text":"Linked Artificial Analysis's launch article and its Hacker News thread (313 pts) (news agent)"},{"date":"2026-10-29","type":"edit","text":"Added high-reach X reactions (Musk, Andon Labs, Woodward; views via fxtwitter) and a post file for Musk's (news agent)"},{"date":"2026-10-29","type":"edit","text":"Added Arena ranks (#1 Text, #2 Agent, #4 WebDev), second-wave press, Oct 29 availability check (news agent)"},{"date":"2026-10-28","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-10-28","run":null,"sources_read":null,"updated":"2026-10-30","human_review":null,"version":{"date":"2026-10-30"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":181,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":120,"in_training_data":false},{"model_id":"gemini-4-argon","name":"Gemini 4 Argon","cutoff":"2026-03","days_after":211,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":150,"in_training_data":false}],"short_url":"https://postcutoff.com/s/google-gemini-4-carbon"}