Claude Fable 5.1 vs GPT-6 Astra: Pricing and Specs
Claude Fable 5.1 $10 / $50 vs GPT-6 Astra $10 / $50 per 1M tokens in / out.
| Claude Fable 5.1 | GPT-6 Astra | |
|---|---|---|
| Maker | Anthropic | OpenAI |
| Input, per 1M tokens | $10 | $10 |
| Output, per 1M tokens | $50 | $50 |
| 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 1, 2026 claude.com | Sep 3, 2026 openai.com |
| Retirement | Not sooner than September 1, 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 | 0 |
Facts side by side from each maker's own pages. No score and no verdict.
Recent changes
Get an email when Claude Fable 5.1 or GPT-6 Astra changes its price
Questions
Which is cheaper, Claude Fable 5.1 or GPT-6 Astra
They list the same price: $10 per 1M input tokens.
What do 1M input and 1M output tokens cost on each
Claude Fable 5.1: $60. GPT-6 Astra: $60. Listed standard prices, before caching or batch discounts.
What context window does each have
Claude Fable 5.1: 1M tokens. GPT-6 Astra: 1,050,000 tokens. From each maker's docs.
Who makes Claude Fable 5.1 and GPT-6 Astra
Claude Fable 5.1 is made by Anthropic. GPT-6 Astra is made by OpenAI.