GPT-5.6 Sollatest from openai
People use it to write computer code and solve complex reasoning problems.
openai’s newest large language model, able to hold about 1050k tokens of context (roughly 788k words) in one conversation, working across text and image and file->text. You reach it through an API or through tools built on it. Built for programmers who need help with complex coding tasks. openai describes it as: “GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series.” source ↗
Our tested score
Battle record
unfought
no battle yet — we don't guess
Forum sentiment — 90d to 12 Aug 2026
50%
developer-forum posts: 22 opinions in 104
stale — measured 41 days ago, not re-swept since
What people are posting (90 days)
Loudest post this quarter
“After OpenAI’s CDC proof announcement, GPT-5.6 used a similar prompt to close a 30-year gap in convex optimization, verified in Lean”
Compare GPT-5.6 Sol against…
GPT-5.6 Luna · spreadsheets & ExcelGPT-5.6 Terra · spreadsheets & ExcelGPT-5.3-Codex · spreadsheets & ExcelGPT-5.5 · spreadsheets & ExcelGLM 5.2 · spreadsheets & ExcelQwen3.7 Max · spreadsheets & ExcelGrok 4.5 · spreadsheets & ExcelClaude Opus 4.8 · spreadsheets & ExcelDeepSeek V4 Flash · spreadsheets & ExcelGPT-5.5 · essay writingGPT-5.6 Luna · essay writingGPT-5.6 Terra · essay writingGPT-5.3-Codex · essay writingClaude Sonnet 5 · essay writingClaude Opus 4.6 · essay writingGrok 4.5 · essay writingQwen3.7 Max · essay writingGemini 3.1 Pro Preview · essay writingClaude Opus 4.8 · summarising documents
Every claim we hold (3)
- api price in per 1m2 USD/1M tokensOpenRouter API23 Sept 2026verified
- api price out per 1m10 USD/1M tokensOpenRouter API23 Sept 2026verified
- context length1050000 tokensOpenRouter API23 Sept 2026verified