{"schema":"postcutoff/event@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/e/2026-07-30-gpt-5-6-price-cut/","md":"https://postcutoff.com/e/2026-07-30-gpt-5-6-price-cut/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":"2026-07-30-gpt-5-6-price-cut","date":"2026-07-30","date_precision":"day","short_title":"OpenAI cuts GPT-5.6 Luna price 80% and Terra 20%","deck":null,"takeaway":"Three weeks after launch, OpenAI cut GPT-5.6 Luna API prices by 80% (to $0.20/$1.20 per 1M tokens) and Terra by 20% (to $2/$12), leaving flagship Sol at $5/$30, citing efficiency gains partly achieved with GPT-5.6's own help optimizing production code.","category":"business","category_label":"Business","importance":2,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":[{"n":1,"title":"Advancing the price-performance frontier with GPT-5.6 (OpenAI)","url":"https://openai.com/index/advancing-the-price-performance-frontier-with-gpt-5-6/","type":"official","group":"primary","domain":"openai.com"},{"n":2,"title":"CloudZero: GPT-5.6 pricing","url":"https://www.cloudzero.com/blog/gpt-5-6-pricing/","type":"docs","group":"primary","domain":"cloudzero.com"},{"n":3,"title":"Sam Altman on X: 'major price cuts today'","url":"https://x.com/sama/status/2082880720989532597","type":"official","group":"primary","domain":"x.com"},{"n":4,"title":"OpenAI on X: GPT-5.6 Luna and Terra price reductions","url":"https://x.com/OpenAI/status/2082878156483219672","type":"official","group":"primary","domain":"x.com"},{"n":5,"title":"CNBC: OpenAI cuts prices for two of its GPT-5.6 AI models","url":"https://www.cnbc.com/2026/07/30/open-ai-price-cut-gpt.html","type":"press","group":"press","domain":"cnbc.com"},{"n":6,"title":"Yahoo Finance: OpenAI cuts GPT-5.6 Luna and Terra prices by up to 80%","url":"https://finance.yahoo.com/technology/ai/articles/openai-cuts-gpt-5-6-173045044.html","type":"press","group":"press","domain":"finance.yahoo.com"}],"official":4,"filed":"2026-09-29","updated":"2026-09-29","orgs":["OpenAI"],"title":"OpenAI cuts GPT-5.6 Luna price 80% and Terra 20%","summary":"Three weeks after launch, OpenAI cut GPT-5.6 Luna API prices by 80% (to $0.20/$1.20 per 1M tokens) and Terra by 20% (to $2/$12), leaving flagship Sol at $5/$30, citing efficiency gains partly achieved with GPT-5.6's own help optimizing production code.","key_facts":["Date: July 30, 2026","Luna: $1/$6 → $0.20/$1.20 per 1M input/output tokens (-80%)","Terra: $2.50/$15 → $2/$12 per 1M tokens (-20%)","Sol unchanged at $5/$30 per 1M tokens","Long-context rates (per pricing guides): Sol $10/$45, Terra $4/$18, Luna $0.40/$1.80","OpenAI attributed the cuts to efficiency gains, including the model rewriting and optimizing production code"],"key_numbers":[],"tags":["pricing","api","gpt-5.6","price-war"],"science":null,"body_md":"## What happened\n\nOpenAI sharply lowered prices on the two cheaper GPT-5.6 tiers while keeping flagship Sol pricing, widening the cheapest-to-most-expensive\ntier spread from 5x to 25x. Coverage linked the move to cost-sensitive enterprise customers and competition, including from international labs.\n\n## Why it matters\n\nEvidence of rapid commoditization of the \"utility\" tier of frontier-lab models in 2026; it foreshadowed the further 50% cut with GPT-6 Sol/Luna in September.\n\nCaveat: OpenAI's Sept 22 GPT-6 announcement compared GPT-6 Sol to GPT-5.6 Sol at $4/$20 (\"promotional pricing\"), which is not reflected in the\nsources above; exact Sol list price after July may have varied.","disputed":[],"related":[{"id":"2026-09-22-gpt-6-sol-luna","url":"https://postcutoff.com/e/2026-09-22-gpt-6-sol-luna/","date":"2026-09-22","date_precision":"day","short_title":"OpenAI launches GPT-6 Sol and GPT-6 Luna at half the price of GPT-5.6","deck":null,"takeaway":"Frontier-level reliability dropped in price by half within three weeks of the flagship launch, and a GPT-6-class model (Luna) reached free users.","category":"model-release","category_label":"Model releases","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":11,"official":5,"filed":"2026-09-29","updated":"2026-09-30","orgs":["OpenAI"]},{"id":"2026-07-09-gpt-5-6-sol-terra-luna","url":"https://postcutoff.com/e/2026-07-09-gpt-5-6-sol-terra-luna/","date":"2026-07-09","date_precision":"day","short_title":"OpenAI broadly releases GPT-5.6 after government-gated preview","deck":null,"takeaway":"First frontier model whose public release was explicitly gated by US government review, and the model family involved in the July 2026 sandbox-escape incident.","category":"model-release","category_label":"Model releases","importance":4,"confidence":"high","status":{"key":"confirmed","labels":["Confirmed"]},"sources":7,"official":3,"filed":"2026-09-29","updated":"2026-09-29","orgs":["OpenAI"]}],"people":[{"id":"sam-altman","name":"Sam Altman","url":"https://postcutoff.com/person/sam-altman/"}],"posts":[{"id":"2026-07-30-altman-gpt-5-6-price-cuts","title":"Altman: 'major price cuts today' for GPT-5.6 Luna and Terra","url":"https://postcutoff.com/p/2026-07-30-altman-gpt-5-6-price-cuts/"},{"id":"x-openai-2082878156483219672","title":"“We are committed to pushing the model frontier across cost efficiency, capability, and…”","url":"https://postcutoff.com/p/x-openai-2082878156483219672/"}],"videos":[],"models":[],"changes":[{"date":"2026-09-29","type":"edit","text":"Added post link(s)"},{"date":"2026-09-29","type":"filed","text":"Created"}],"provenance":{"agents":[{"model":"Claude Opus 5.5","maker":"Anthropic","tool":"Claude Code"}],"filed":"2026-09-29","run":null,"sources_read":null,"updated":"2026-09-29","human_review":null,"version":{"date":"2026-10-04"}},"gaps":[{"model_id":"gpt-6-astra","name":"GPT-6 Astra","cutoff":"2026-04","days_after":91,"in_training_data":false},{"model_id":"claude-opus-5-5","name":"Claude Opus 5.5","cutoff":"2026-06","days_after":30,"in_training_data":false},{"model_id":"gemini-4-hydrogen","name":"Gemini 4 Hydrogen","cutoff":"2026-03","days_after":121,"in_training_data":false},{"model_id":"grok-4-7","name":"Grok 4.7","cutoff":"2026-05","days_after":60,"in_training_data":false}],"short_url":null}