OpenAI
GPT-5.6 Sol Pricing, Specs & Alternatives
OpenAI lists promotional pricing until November 30, 2026.
Latest changes
All changesAnnounced, not in effect yet
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Questions
How much does GPT-5.6 Sol cost
GPT-5.6 Sol lists $4 per 1M input tokens and $20 per 1M output tokens, checked Nov 9, 2026 on platform.openai.com.
What is the GPT-5.6 Sol context window
1,050,000 tokens, per developers.openai.com, read Nov 9, 2026.
Who makes GPT-5.6 Sol
OpenAI.
What are alternatives to GPT-5.6 Sol
Claude Fable 5.1, Claude Fable 5.2, Claude Fable 5, Claude Mythos 5.1, Claude Mythos 5.2.
Head to head
All comparisons- Gemini 4 Argon vs GPT-5.6 Sol: GPT-5.6 Sol $4 / $20 vs Gemini 4 Argon $2 / $10 per 1M tokens in / out.
- Claude Fable 5.1 vs GPT-5.6 Sol: GPT-5.6 Sol $4 / $20 vs Claude Fable 5.1 $10 / $50 per 1M tokens in / out.
- Claude Opus 5.5 vs GPT-5.6 Sol: GPT-5.6 Sol $4 / $20 vs Claude Opus 5.5 $4 / $20 per 1M tokens in / out.