The previous-generation flagship for complex professional and coding work, still widely offered in coding tools. It has a 1.05M tokens context window. Through OpenAI’s API it costs $4.00 per million input tokens and $20.00 per million output tokens.
Among the tools we track, it’s available in Copilot, Cursor, Kiro, Zed and Amp. The listed price is promotional through November 30, 2026. GPT-5.6 Terra and Luna, released the same day, are still offered too.
Related changes
- OpenAI cuts GPT-5.6 Sol pricing by more than 20% for three months · August 21, 2026
- Grok 4.6 arrives in Cursor at $2 / $6 per million tokens · August 12, 2026
- OpenAI models come to Kiro for the first time: GPT-5.6 Sol, Terra and Luna · July 14, 2026
- Amp swaps its smart, deep and rush modes for a low-to-ultra Dial · July 9, 2026
- GPT-5.6 Sol, Terra and Luna become generally available in Codex · July 9, 2026
Sources
- developers.openai.com: gpt 5.6 sol
- docs.github.com: supported models
- cursor.com: models
- kiro.dev: models
- zed.dev: models
Facts last checked November 15, 2026.