{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/gemini-3-8-flash/","md":"https://postcutoff.com/m/gemini-3-8-flash/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":"gemini-3-8-flash","name":"Gemini 3.8 Flash","org":"Google DeepMind","family":"Gemini 3","released":"2026-09-02","status":"current","type":"reasoning-llm","modality_in":["text","image","audio","video","pdf"],"modality_out":["text"],"open_weights":false,"model_license":"proprietary","context_window":1048576,"max_output":65536,"knowledge_cutoff":"2026-03","pricing":{"input":0.75,"output":3.75,"unit":"per 1M tokens (Standard tier, introductory price through 2026-12-31; rises to $1.50 / $7.50 from 2027-01-01)","source":"https://ai.google.dev/gemini-api/docs/pricing"},"price_line":"$0.75 in, $3.75 out per 1M tokens","access":[{"provider":"Gemini API","model_id":"gemini-3.8-flash","endpoint":"https://generativelanguage.googleapis.com/v1beta/models/gemini-3.8-flash:generateContent","docs":"https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash"},{"provider":"Google Cloud Gemini Enterprise Agent Platform (Vertex AI)","model_id":"gemini-3.8-flash","docs":"https://docs.cloud.google.com/gemini-enterprise-agent-platform/models/gemini/3-8-flash"},{"provider":"OpenRouter","model_id":"google/gemini-3.8-flash"},{"provider":"Web app","url":"https://gemini.google.com"}],"capabilities":[{"name":"Long-horizon software engineering","detail":"Google's most capable Flash for autonomous end-to-end engineering; 73.7% on DeepSWE v1.1, 89.4% terminal-based coding per model card.","first":false,"discovered":"launch","source":"https://deepmind.google/models/model-cards/gemini-3-8-flash/"},{"name":"Specialized-domain agentic analysis","detail":"Beats 3.7 Flash and other frontier models on Vals Finance Agent v2 (61.4%) and Harvey's Legal Agent Benchmark.","first":false,"discovered":"launch","source":"https://blog.google/innovation-and-ai/models-and-research/gemini-models/3-8-flash-and-3-8-flash-cyber/"},{"name":"Agentic long-video understanding","detail":"87.8% long video understanding in agentic mode (agentic video understanding added for 3.x Flash on 2026-09-01).","first":false,"discovered":"launch","source":"https://deepmind.google/models/model-cards/gemini-3-8-flash/"},{"name":"Adjustable thinking levels + computer use","detail":"Thinking low/medium/high, computer use (preview), Maps/Search grounding, flex and priority inference tiers.","first":false,"discovered":"launch","source":"https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash"},{"name":"Cyber sibling model","detail":"Launched alongside Gemini 3.8 Flash Cyber (vulnerability detection/patching, 47.2% CWE-Bench pass@1), available only to vetted defenders via the Fairwind Program.","first":false,"discovered":"launch","source":"https://blog.google/innovation-and-ai/models-and-research/gemini-models/3-8-flash-and-3-8-flash-cyber/"}],"entry":null,"notes":"Newest and recommended Gemini text model as of 2026-09 (no Pro newer than 3.1 Pro preview; 3.5 Pro announced but unreleased). Aliases gemini-flash-latest may point here. Model card says some domains' knowledge only to 2025-01. Vertex id inferred from docs page.","verified":"2026-09-29","body_md":"Google's flagship workhorse model (Sept 2026): best Gemini for coding agents, multi-step reasoning and long multimodal context at Flash prices.\n\n```bash\ncurl \"https://generativelanguage.googleapis.com/v1beta/models/gemini-3.8-flash:generateContent\" \\\n  -H \"x-goog-api-key: $GEMINI_API_KEY\" -H \"Content-Type: application/json\" \\\n  -d '{\"contents\":[{\"parts\":[{\"text\":\"Explain how AI works in a few words\"}]}]}'\n```\n\nSources: [model page](https://ai.google.dev/gemini-api/docs/models/gemini-3.8-flash), [pricing](https://ai.google.dev/gemini-api/docs/pricing), [launch blog](https://blog.google/innovation-and-ai/models-and-research/gemini-models/3-8-flash-and-3-8-flash-cyber/), [model card](https://deepmind.google/models/model-cards/gemini-3-8-flash/).","page_url":"https://postcutoff.com/m/gemini-3-8-flash/","events_after":1889,"major_after":433,"historic_after":85,"missing_at_launch":290,"events_since_release":null,"you_url":"https://postcutoff.com/you/gemini-3-8-flash/","briefings":{"xs":"https://postcutoff.com/briefings/cutoff-2026-03-xs.md","s":"https://postcutoff.com/briefings/cutoff-2026-03-s.md","m":"https://postcutoff.com/briefings/cutoff-2026-03-m.md","full":"https://postcutoff.com/briefings/cutoff-2026-03.md"}}