Claude Fable 5 vs GPT-6 Astra
Both have similar output pricing, while GPT-6 Astra offers a larger context window. Choose Claude Fable 5 or GPT-6 Astra based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Claude Fable 5 | GPT-6 Astra |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Input / 1M tokens | $10.00 | $10.00 |
| Output / 1M tokens | $50.00 | $50.00 |
| Context window | 1M | 1.1M |
| Parameters | — | — |
| Open weights | No | — |
| Released | Jun 2026 | — |
| LiveBench score | 78.6 | — |
| GPQA Diamond score | 85.9 | 95.8 |
| Epoch Capabilities Index score | 163 | 169 |
| LMArena (Chatbot Arena) Elo score | 1492 | 1441 |
| LMArena WebDev Elo score | 1624 | 1773 |
| LMArena Vision Elo score | 1325 | 1280 |
FAQ
Is Claude Fable 5 or GPT-6 Astra cheaper?
Claude Fable 5 and GPT-6 Astra have comparable output pricing.
Which has the larger context window, Claude Fable 5 or GPT-6 Astra?
GPT-6 Astra has the larger context window (1.1M tokens).
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.