Model comparison
Claude Fable 5.1 vs Mistral 7B
Claude Fable 5.1 is the stronger model overall, scoring 69.0 to 23.0 on the Noometry Index. Mistral 7B costs 80× less per token, which makes it the better buy when Claude Fable 5.1's lead doesn't matter for your workload.
Last verified . 20 shared benchmarks.
Mistral AISummary
- They share 20 benchmarks with published results for both. Claude Fable 5.1 scores higher in 8 categories and Mistral 7B in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Fable 5.1 leads 89.6 to 8.1.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for Claude Fable 5.1 and 0.3% for Mistral 7B.
- Mistral 7B is cheaper at $0.25 / $0.25 per million input/output tokens, against $10 / $50 for Claude Fable 5.1.
- Claude Fable 5.1 accepts more context: 1M tokens versus 8K.
- Mistral 7B has downloadable open weights; the other is API-only.
Side by side
| Claude Fable 5.1 | Mistral 7B | |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Noometry Index | 69.0 | 23.0 |
| Released | 2026-09-01 | 2023-09-27 |
| Weights | Proprietary | Open |
| Context window | 1M | 8K |
| Max output | 128K | 8K |
| Input $ / M tokens | $10 | $0.25 |
| Output $ / M tokens | $50 | $0.25 |
| Results tracked | 52 | 37 |
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Category by category
Coding Claude Fable 5.1 leads
Claude Fable 5.1: 74.7 (#1), Mistral 7B: 26.4 (#326)
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| LMArena Coding | 1528 | 1082 |
| FrontierCode | 50.9% | — |
| CursorBench | 51.8% | — |
| LMArena WebDev | 1744 | — |
| FrontierSWE | 56.3% | — |
| SciCode | 63.1% | — |
| GSO | 88.2% | — |
| WeirdML | 92.9% | — |
| BigCodeBench Instruct | — | 19.5% |
| MirrorCode | 73.3% | — |
| BigCodeBench Complete | — | 27.3% |
| ALE-Bench | 2,143 | — |
| HumanEval+ | — | 36% |
| MBPP+ | — | 42.1% |
Agentic & Tool Use Not comparable
Claude Fable 5.1: 50.7 (#5), Mistral 7B: —
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| APEX-Agents | 68.6% | — |
| Remote Labor Index | 17.9% | — |
| GDP.pdf | 29.6% | — |
| Vending-Bench 2 | 5,422 | — |
Reasoning Claude Fable 5.1 leads
Claude Fable 5.1: 76.7 (#7), Mistral 7B: 13.1 (#336)
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| Chess Puzzles | 47% | 0% |
| LMArena Hard Prompts | 1526 | 1067 |
| DTBench | 97.6% | 42.5% |
| Epoch Capabilities Index | 164.7 | 112.21 |
| ARC-AGI-2 | 90% | — |
| NYT Connections (extended) | 90% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 31.1% | — |
| EBR-Bench | 57.1% | — |
| Mystery Game Puzzles | 58% | — |
| LMCA | 65.5% | — |
| Adversarial NLI | — | 47.1% |
| BIG-Bench Hard | — | 56.1% |
| HellaSwag | — | 81% |
| PIQA | — | 83% |
| WinoGrande | — | 75.3% |
Math Claude Fable 5.1 leads
Claude Fable 5.1: 89.6 (#4), Mistral 7B: 8.1 (#325)
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 100% | 0.3% |
| LMArena Math | 1525 | 1085 |
| FrontierMath (Tiers 1-3) | 90.2% | — |
| FrontierMath Tier 4 | 87.8% | — |
| ProofBench | 100% | — |
| MATH Level 5 | — | 3.7% |
| FrontierMath Erdős | 0% | — |
| GSM8K | — | 54.4% |
Knowledge Claude Fable 5.1 leads
Claude Fable 5.1: 69.6 (#6), Mistral 7B: 7.4 (#311)
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| LMArena Expert | 1535 | 1036 |
| GPQA Diamond | — | 15.2% |
| Humanity's Last Exam | 46.5% | — |
| SimpleQA Verified | 70.8% | — |
| ARC (AI2) Challenge | — | 78.6% |
| BoolQ | — | 87.4% |
| MMLU | — | 62.5% |
| OpenBookQA | — | 79.8% |
| TriviaQA | — | 75.2% |
Multimodal Not comparable
Claude Fable 5.1: 53.9 (#4), Mistral 7B: —
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| LMArena Vision | 1318 | — |
| Blueprint-Bench 2 | 41.9% | — |
| Furniture Assembly | 70% | — |
| LMArena Document | 1513 | — |
Multilingual Claude Fable 5.1 leads
Claude Fable 5.1: 59.1 (#3), Mistral 7B: 25.8 (#283)
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| LMArena Non-English | 1507 | 1012 |
| LMArena Chinese | 1586 | 1009 |
| LMArena French | 1525 | 1037 |
| LMArena German | 1500 | 987 |
| LMArena Japanese | 1543 | 878 |
| LMArena Russian | 1521 | 1018 |
| LMArena Spanish | 1516 | 1026 |
| LMArena Korean | 1534 | — |
Instruction Following Claude Fable 5.1 leads
Claude Fable 5.1: 79.2 (#6), Mistral 7B: 54.2 (#280)
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| LMArena Instruction Following | 1517 | 1060 |
Long Context Claude Fable 5.1 leads
Claude Fable 5.1: 46.7 (#20), Mistral 7B: 32.2 (#271)
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| LMArena Longer Query | 1522 | 1060 |
Writing & Preference Claude Fable 5.1 leads
Claude Fable 5.1: 79.2 (#2), Mistral 7B: 30.7 (#286)
| Benchmark | Claude Fable 5.1 | Mistral 7B |
|---|---|---|
| LMArena Text | 1510 | 1090 |
| LMArena Creative Writing | 1507 | 1068 |
| LMArena Multi-Turn | 1492 | 1062 |
| EQ-Bench Creative Writing | 2162 | — |
Frequently asked questions
Is Claude Fable 5.1 better than Mistral 7B?
Claude Fable 5.1 is the stronger model overall, scoring 69.0 to 23.0 on the Noometry Index. Mistral 7B costs 80× less per token, which makes it the better buy when Claude Fable 5.1's lead doesn't matter for your workload.
Which is cheaper, Claude Fable 5.1 or Mistral 7B?
Mistral 7B is cheaper. It lists at $0.25 per million input tokens and $0.25 per million output tokens; Claude Fable 5.1 lists at $10 and $50.
Is Claude Fable 5.1 or Mistral 7B better for coding?
Claude Fable 5.1 scores higher on coding benchmarks: 74.7 versus 26.4 in the Noometry coding category.
Which has the bigger context window?
Claude Fable 5.1 does, with 1M tokens against 8K.
How many benchmarks do Claude Fable 5.1 and Mistral 7B share?
20 benchmarks have published results for both models. Claude Fable 5.1 has 52 scored results on Noometry and Mistral 7B has 37.