Model comparison
Claude Fable 5.1 vs DeepSeek Coder 1.3B
Claude Fable 5.1 has enough public results to be ranked (#2); DeepSeek Coder 1.3B does not yet, so treat this comparison as directional.
Last verified . 1 shared benchmarks.
DeepSeekSummary
- They share 1 benchmark with published results for both. Claude Fable 5.1 scores higher in 1 category and DeepSeek Coder 1.3B in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in coding, where Claude Fable 5.1 leads 74.7 to 31.2.
- DeepSeek Coder 1.3B has downloadable open weights; the other is API-only.
Side by side
| Claude Fable 5.1 | DeepSeek Coder 1.3B | |
|---|---|---|
| Provider | Anthropic | DeepSeek |
| Noometry Index | 69.0 | 35.0 |
| Released | 2026-09-01 | 2023-11-02 |
| Weights | Proprietary | Open |
| Context window | 1M | — |
| Max output | 128K | — |
| Input $ / M tokens | $10 | — |
| Output $ / M tokens | $50 | — |
| Results tracked | 52 | 9 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Claude Fable 5.1 leads
Claude Fable 5.1: 74.7 (#1), DeepSeek Coder 1.3B: 31.2 (#287)
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| FrontierCode | 50.9% | — |
| CursorBench | 51.8% | — |
| LMArena WebDev | 1744 | — |
| FrontierSWE | 56.3% | — |
| SciCode | 63.1% | — |
| GSO | 88.2% | — |
| WeirdML | 92.9% | — |
| BigCodeBench Instruct | — | 22.8% |
| LMArena Coding | 1528 | — |
| MirrorCode | 73.3% | — |
| BigCodeBench Complete | — | 29.6% |
| ALE-Bench | 2,143 | — |
| HumanEval+ | — | 60.4% |
| MBPP+ | — | 54.8% |
Agentic & Tool Use Not comparable
Claude Fable 5.1: 50.7 (#5), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| APEX-Agents | 68.6% | — |
| Remote Labor Index | 17.9% | — |
| GDP.pdf | 29.6% | — |
| Vending-Bench 2 | 5,422 | — |
Reasoning Not comparable
Claude Fable 5.1: 76.7 (#7), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| Epoch Capabilities Index | 164.7 | 63.6 |
| ARC-AGI-2 | 90% | — |
| NYT Connections (extended) | 90% | — |
| ARC-AGI-1 | 97.5% | — |
| CritPt | 31.1% | — |
| Chess Puzzles | 47% | — |
| EBR-Bench | 57.1% | — |
| LMArena Hard Prompts | 1526 | — |
| Mystery Game Puzzles | 58% | — |
| DTBench | 97.6% | — |
| LMCA | 65.5% | — |
| WinoGrande | — | 53.3% |
Math Not comparable
Claude Fable 5.1: 89.6 (#4), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| FrontierMath (Tiers 1-3) | 90.2% | — |
| FrontierMath Tier 4 | 87.8% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| LMArena Math | 1525 | — |
| FrontierMath Erdős | 0% | — |
| GSM8K | — | 4.4% |
Knowledge Not comparable
Claude Fable 5.1: 69.6 (#6), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| Humanity's Last Exam | 46.5% | — |
| SimpleQA Verified | 70.8% | — |
| LMArena Expert | 1535 | — |
| ARC (AI2) Challenge | — | 25.4% |
| MMLU | — | 25.8% |
Multimodal Not comparable
Claude Fable 5.1: 53.9 (#4), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| LMArena Vision | 1318 | — |
| Blueprint-Bench 2 | 41.9% | — |
| Furniture Assembly | 70% | — |
| LMArena Document | 1513 | — |
Multilingual Not comparable
Claude Fable 5.1: 59.1 (#3), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| LMArena Non-English | 1507 | — |
| LMArena Chinese | 1586 | — |
| LMArena French | 1525 | — |
| LMArena German | 1500 | — |
| LMArena Japanese | 1543 | — |
| LMArena Korean | 1534 | — |
| LMArena Russian | 1521 | — |
| LMArena Spanish | 1516 | — |
Instruction Following Not comparable
Claude Fable 5.1: 79.2 (#6), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| LMArena Instruction Following | 1517 | — |
Long Context Not comparable
Claude Fable 5.1: 46.7 (#20), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| LMArena Longer Query | 1522 | — |
Writing & Preference Not comparable
Claude Fable 5.1: 79.2 (#2), DeepSeek Coder 1.3B: —
| Benchmark | Claude Fable 5.1 | DeepSeek Coder 1.3B |
|---|---|---|
| LMArena Text | 1510 | — |
| LMArena Creative Writing | 1507 | — |
| EQ-Bench Creative Writing | 2162 | — |
| LMArena Multi-Turn | 1492 | — |
Frequently asked questions
Is Claude Fable 5.1 better than DeepSeek Coder 1.3B?
Claude Fable 5.1 has enough public results to be ranked (#2); DeepSeek Coder 1.3B does not yet, so treat this comparison as directional.
Is Claude Fable 5.1 or DeepSeek Coder 1.3B better for coding?
Claude Fable 5.1 scores higher on coding benchmarks: 74.7 versus 31.2 in the Noometry coding category.
How many benchmarks do Claude Fable 5.1 and DeepSeek Coder 1.3B share?
1 benchmark has published results for both models. Claude Fable 5.1 has 52 scored results on Noometry and DeepSeek Coder 1.3B has 9.