2 models · 1–2
| Select models to compare | Model | Released | Context | Input /M | Output /M | Parameters | Type | I/O | Openness |
|---|---|---|---|---|---|---|---|---|---|
 Claude Fable 5.1Anthropic | September 1, 2026 | 1M | $10.00 | $50.00 | — | Text | text, image, file → text | Closed | |
| Claude Mythos 5.1Anthropic | September 1, 2026 | 1M | — | — | — | Text | text, image, file → text | Closed |