Models
Each model has its own first-seen and last-seen times, kept by Model Beacon. Provider-supplied creation dates are not used.
| Provider | Model ID | Status | Best evidence | First seen |
|---|---|---|---|---|
| Anthropic | claude-haiku-5-5 | Hinted | Hint | |
| Anthropic | claude-fable-5-1 | Hinted | Hint | |
| Anthropic | claude-haiku-4-5 | Hinted | Hint | |
| Anthropic | claude-haiku-4-5-20251001 | Hinted | Hint | |
| Anthropic | claude-opus-5-5 | Hinted | Hint | |
| Anthropic | claude-sonnet-5-5 | Hinted | Hint |