Claude Fable 5 vs GPT-5.4 nano
GPT-5.4 nano is cheaper on output tokens, while GPT-5.4 nano offers a larger context window. Choose Claude Fable 5 or GPT-5.4 nano based on the trade-off between cost, context, and the benchmarks that matter for your use case.
| Spec | Claude Fable 5 | GPT-5.4 nano |
|---|---|---|
| Provider | Pioneer | Pioneer |
| Input / 1M tokens | $11.00 | $0.20 |
| Output / 1M tokens | $55.00 | $1.25 |
| Context window | 1M | 1M |
| Parameters | — | — |
| Open weights | No | No |
| Released | Jun 2026 | Mar 2026 |
FAQ
Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.