Claude Fable 5.1 vs Claude Sonnet 5
2 models on 15 recorded dimensions. Each cell shows the value as stated by its source.
Tray 2 / 6
- ModelClaude Fable 5.1Anthropic
- ModelClaude Sonnet 5Anthropic
Dimensions 15
| Dimension | Claude Fable 5.1Anthropic | Claude Sonnet 5Anthropic |
|---|---|---|
| Parametersparams | Unavailable | Unavailable |
| Active parametersparams | Unavailable | Unavailable |
| Context windowtokens | 1M tokens | 1M tokens |
| Max outputtokens | 128K tokens | 128K tokens |
| Openness | proprietary | proprietary |
| License | Unavailable | Unavailable |
| Modalities | textimage | textimage |
| Release date | 1 Sept 2026 | 30 Jun 2026 |
| Knowledge cutoff | Jun 2026 | Jan 2026 |
| Status | active | active |
| Family | Claude | Claude |
| Architecture | Unavailable | Unavailable |
| Best input priceUSD / 1M tokens | $5 | $1 |
| Best output priceUSD / 1M tokens | $25 | $5 |
| Providers | 1 | 1 |
Bold marks the best number in a row (highest, or lowest for prices); it is not a verdict. Each value carries its own source and tier; hover a cell for the observation date. Missing values are shown as unavailable, never estimated.
Shared benchmarks
No benchmark results recorded for these models. Per-model results are on each model page (Benchmarks tab).
Prices · USD per 1M tokens
| Provider | Claude Fable 5.1in / out per 1M | Claude Sonnet 5in / out per 1M |
|---|---|---|
| Anthropic API | $5 / $25 | $1 / $5 |
Cheapest current input / output price of each provider for each model, as published on the provider's pricing page (USD per 1M tokens). Bold = the model's cheapest provider. Full tables and history on each model page, or the price index.
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