Claude Fable 5vsGPT-6 Astra Pro
GPT-6 Astra Pro has a larger context window than Claude Fable 5 (1.1M tokens vs 1.0M tokens).
| Spec | Claude Fable 5 | GPT-6 Astra Pro |
|---|---|---|
| Input price | $10/M tokens | $10/M tokens |
| Output price | $50/M tokens | $50/M tokens |
| Context window | 1.0M tokens | 1.1M tokens |
| Weights | Closed | Closed |
| Free API (OpenRouter) | No | No |
| Released | Jun 2026 | Sep 2026 |
Our Verdict
Claude Fable 5
GPT-6 Astra Pro
Not enough votes to call it. On the specs, nothing separates them.
Too close to call
API pricing
Cost per 1M tokens
Claude Fable 5
Input
$10.00
Output
$50.00
GPT-6 Astra Pro
Input
$10.00
Output
$50.00
Where to run it
6 hosts
GPT-6 Astra Pro2 hosts
Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.
Research
What we learned reading every model
FAQ
Common questions
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