GPT-6 Sol

OpenAI · Released Sep 22, 2026

Input price / MTok

$10

Output price / MTok

1.1M

Context window

Summary

GPT-6 Sol is a proprietary language model from OpenAI, released on Sep 22, 2026.

At $2 input and $10 output per million tokens, it ranks #22 of 40 for input price, placing it mid-range on input cost.

Its context window of 1.1M tokens ranks #5 of 41 for context depth in this dataset.

It targets coding, agents, reasoning workloads.

Released Sep 22 2026 alongside GPT-6 Luna, one tier below GPT-6 Astra in the GPT-6 family. OpenAI priced it at half of GPT-5.6 Sol's promotional $4/$20. API identifier gpt-6-sol, knowledge cutoff Apr 20 2026. Release date per OpenAI's developer community announcement (https://community.openai.com/t/announcing-gpt-6-sol-and-gpt-6-luna-in-the-api-codex-and-chatgpt/1399925).

No independently verified benchmark scores are available for this model. Scores are only shown when independently confirmed with a source URL.

Technical specs

OpenAI