GPT-6

GPT-6.1 Terra is OpenAI's new $1/$5 per million token model: 50.3% on Terminal-Bench 4.0 (vendor-reported), half Sol's price, and who should route to it.

Free and Go ($8) both get GPT-6 Luna in Chat. Plus ($20) is the cheapest plan with GPT-6 Sol and full Codex. What each ChatGPT plan buys now.

Everything OpenAI announced at DevDay 2026: GPT-6.1 Sol at $2/$10, Ultrafast, Decisions API, Agents API, cloud Codex, and what to test first.

GPT-6.1 Sol release guide: near-Astra scores at a fifth of Astra's price, $0.10 cache reads, verified pricing, the Astra 6.1 safety hold, and how to run it.

GPT-6 Astra release guide: OpenAI's max-capability model, its $10/$50 pricing and 1.05M context, what the benchmarks do and do not say, and commands to try it.

GPT-6 in 7 minutes: what Astra, Sol and Luna are, what each tier costs per million tokens, the new API features, and how to try each one in Codex and the API.

OpenAI DevDay 2026 runs September 29 at Fort Mason in San Francisco. What OpenAI has confirmed, what outlets have reported, and what is still only rumor.

GPT-6 drives Codex to build a walkable, single-file Three.js world with AI-generated wall assets. The verified toolchain and when this web-native 3D path wins.

GPT-6 Astra and Codex script a playable Mars car game in Blender, then Higgsfield's plugin and Seedance turn the assets into trailers. The toolchain and setup.

GPT-6 Sol vs Claude Opus 5.5 vs Grok 4.7 pricing: verified per-token rates, cost-per-task math and a decision guide for the September 2026 price war.

GPT-6 Astra builds a yoga clothing store from one prompt, with generated product shots, product pages and an AI video hero via Codex and the Higgsfield CLI.