Claude Opus 5.5 vs GPT-5.6 Sol: Pricing and Specs
Claude Opus 5.5 $4 / $20 vs GPT-5.6 Sol $4 / $20 per 1M tokens in / out.
| Claude Opus 5.5 | GPT-5.6 Sol | |
|---|---|---|
| Maker | Anthropic | OpenAI |
| Input, per 1M tokens | $4 | $4 |
| Output, per 1M tokens | $20 | $20 |
| Context window | 1M tokens claude.com | 1,050,000 tokens openai.com |
| Max output | 128K tokens claude.com | 128,000 tokens openai.com |
| Input types | Text, Image claude.com | Text, Image openai.com |
| Output types | Text claude.com | Text openai.com |
| Released | Sep 22, 2026 claude.com | Not published in the docs we read |
| Retirement | Not sooner than September 22, 2027 claude.com | Not published in the docs we read |
| Price checked | Nov 9, 2026 anthropic.com | Nov 9, 2026 openai.com |
| Tracked changes | 1 | 1 |
Facts side by side from each maker's own pages. No score and no verdict.
Recent changes
Announced, not in effect yet
Get an email when Claude Opus 5.5 or GPT-5.6 Sol changes its price
Questions
Which is cheaper, Claude Opus 5.5 or GPT-5.6 Sol
They list the same price: $4 per 1M input tokens.
What do 1M input and 1M output tokens cost on each
Claude Opus 5.5: $24. GPT-5.6 Sol: $24. Listed standard prices, before caching or batch discounts.
What context window does each have
Claude Opus 5.5: 1M tokens. GPT-5.6 Sol: 1,050,000 tokens. From each maker's docs.
Who makes Claude Opus 5.5 and GPT-5.6 Sol
Claude Opus 5.5 is made by Anthropic. GPT-5.6 Sol is made by OpenAI.