Side-by-side comparison · models
Claude 3 Haiku vs Claude Fable 5.1 (batch)
What we have checked about each, line by line. Every value shows where it came from and when we last confirmed it.
Models
Claude 3 Haiku
Claude 3 Haiku is Anthropic's fastest and most compact model for near-instant responsiveness. Quick and accurate targeted performance.
Models
Claude Fable 5.1 (batch)
Claude Fable 5.1 improves on Claude Fable 5 across the board, with the biggest gains in agentic coding, long-running agentic workflows, and knowledge work: long code refactors.
Checked facts
Line by line
| Measure | Claude 3 Haiku | Claude Fable 5.1 (batch) |
|---|---|---|
| Latest version | Not checked yet | anthropic/claude-fable-5.1-20260831 |
| Time to first token (ms) | Not checked yet | 97,890 |
| Output speed (tokens a second) | Not checked yet | 61.3 |
| Tokens served on OpenRouter in a day | 3.9M (for 26 Sept 2026) | Not checked yet |
| Tool calls on OpenRouter in a day | 81 (for 26 Sept 2026) | Not checked yet |
| Artificial Analysis Intelligence Index | 5.6 | Not checked yet |
| LMArena text rating (Elo) | 1,195 | Not checked yet |
| LMArena vision rating (Elo) | 950 | Not checked yet |
| Gpqa diamond | 36.3% (for 7 Mar 2024) | Not checked yet |
| Cadeval | 12% (for 7 Mar 2024) | Not checked yet |
| Dtbench | 50.1% (for 7 Mar 2024) | Not checked yet |
| Lmca | 8.8% (for 7 Mar 2024) | Not checked yet |
| Math level 5 | 14.9% (for 7 Mar 2024) | Not checked yet |
| Mmlu | 73.8% (for 7 Mar 2024) | Not checked yet |
| Weirdml | 9.8% (for 7 Mar 2024) | Not checked yet |
| Winogrande | 74.2% (for 7 Mar 2024) | Not checked yet |
| Otis mock aime 2024 2025 | 1.8% (saturated benchmark: the top models all score near the ceiling) (for 7 Mar 2024) | Not checked yet |
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