# Claude 3.5 Sonnet vs Inkling

> Inkling is the stronger model overall, scoring 44.1 to 34.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-3-5-sonnet-vs-inkling
- Last updated: 2026-10-11
- Shared benchmarks: 24

## Summary

- They share 24 benchmarks with published results for both. Claude 3.5 Sonnet scores higher in 2 categories and Inkling in 7 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Inkling leads 55.1 to 28.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 8.5% for Claude 3.5 Sonnet and 88.9% for Inkling.
- Inkling has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| Provider | Anthropic | Thinking Machines Lab |
| Noometry Index | 34.6 | 44.1 |
| Rank | 231 | 80 |
| Context | — | 66K |
| Input $/M | — | $1.87 |
| Output $/M | — | $4.68 |
| Weights | Proprietary | Open |

## Coding

- Claude 3.5 Sonnet: 39.0 (#165)
- Inkling: 34.5 (#234)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| WeirdML | 40% | 32.3% |
| LMArena Coding | 1342 | 1464 |
| FrontierCode | — | 14% |
| Aider Polyglot | 51.6% | — |
| LMArena WebDev | — | 1413 |
| FrontierSWE | — | 4.1% |
| SciCode | — | 47% |
| GSO | 4.6% | — |
| BigCodeBench Instruct | 46.8% | — |
| LiveBench Coding | 67.1% | — |
| BigCodeBench Complete | 58.6% | — |
| CadEval | 48% | — |
| ALE-Bench | — | 946 |
| HumanEval+ | 81.7% | — |
| MBPP+ | 74.3% | — |

## Agentic & Tool Use

- Claude 3.5 Sonnet: 32.3 (#67)
- Inkling: 29.6 (#85)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| APEX-Agents | — | 33.8% |
| TheAgentCompany | 24% | — |
| τ²-bench Banking | — | 25% |
| Cybench | 17.5% | — |
| BALROG | 32.6% | — |
| METR Time Horizons | 45.2% | — |

## Reasoning

- Claude 3.5 Sonnet: 23.1 (#183)
- Inkling: 40.4 (#56)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| SimpleBench | 41.4% | 50% |
| LMArena Hard Prompts | 1305 | 1451 |
| DTBench | 67.8% | 87.5% |
| Epoch Capabilities Index | 133.55 | 148.54 |
| ARC-AGI-2 | — | 36.5% |
| ARC-AGI-1 | — | 79.5% |
| CritPt | — | 5.4% |
| Chess Puzzles | — | 21% |
| EnigmaEval | 0.9% | — |
| LiveBench Reasoning | 56.7% | — |
| LiveBench Data Analysis | 55% | — |
| LMCA | — | 37.6% |
| ForecastBench | 60.7 | — |
| LiveBench | 59% | — |

## Math

- Claude 3.5 Sonnet: 19.2 (#288)
- Inkling: 31.3 (#225)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 8.5% | 88.9% |
| LMArena Math | 1307 | 1479 |
| FrontierMath (Tiers 1-3) | — | 33.3% |
| FrontierMath Tier 4 | — | 4.9% |
| ProofBench | — | 0% |
| Omni-MATH | 27.6% | — |
| LiveBench Math | 52.3% | — |
| MATH Level 5 | 56.9% | — |
| FrontierMath (Feb 2025 set) | 2.1% | — |
| FrontierMath Tier 4 (v1) | 0% | — |

## Knowledge

- Claude 3.5 Sonnet: 28.6 (#245)
- Inkling: 55.1 (#49)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| GPQA Diamond | 55.3% | 88.3% |
| LMArena Expert | 1265 | 1465 |
| Humanity's Last Exam | 4.1% | — |
| SimpleQA Verified | — | 40.3% |
| MMLU-Pro | 77.7% | — |
| Confabulations | 19.9% | — |
| GPQA (HELM) | 56.5% | — |
| MMLU | 87.3% | — |

## Multimodal

- Claude 3.5 Sonnet: 26.5 (#120)
- Inkling: —

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| LMArena Vision | 1125 | — |
| Video-MME | 60% | — |
| GeoBench | 62% | — |
| VPCT | 33% | — |

## Multilingual

- Claude 3.5 Sonnet: 43.2 (#185)
- Inkling: 54.0 (#52)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| LMArena Non-English | 1283 | 1434 |
| LMArena Chinese | 1272 | 1490 |
| LMArena French | 1305 | 1458 |
| LMArena German | 1297 | 1446 |
| LMArena Japanese | 1234 | 1429 |
| LMArena Korean | 1200 | 1404 |
| LMArena Russian | 1306 | 1429 |
| LMArena Spanish | 1290 | 1448 |

## Instruction Following

- Claude 3.5 Sonnet: 68.8 (#182)
- Inkling: 75.1 (#71)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| LMArena Instruction Following | 1297 | 1426 |
| LiveBench Instruction Following | 69.3% | — |
| IFEval | 85.5% | — |

## Long Context

- Claude 3.5 Sonnet: 39.9 (#167)
- Inkling: 43.8 (#86)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| LMArena Longer Query | 1311 | 1434 |

## Writing & Preference

- Claude 3.5 Sonnet: 52.9 (#164)
- Inkling: 65.2 (#51)

| Benchmark | Claude 3.5 Sonnet | Inkling |
|---|---|---|
| LMArena Text | 1298 | 1441 |
| LMArena Creative Writing | 1292 | 1387 |
| EQ-Bench Creative Writing | 1451 | 1611 |
| LMArena Multi-Turn | 1326 | 1436 |
| Short-Story Creative Writing | 80.3% | — |
| WildBench | 79.2% | — |
| EQ-Bench 4 | — | 1226 |
| LiveBench Language | 53.8% | — |

## FAQ

### Is Claude 3.5 Sonnet better than Inkling?

Inkling is the stronger model overall, scoring 44.1 to 34.6 on the Noometry Index.

### Is Claude 3.5 Sonnet or Inkling better for coding?

Claude 3.5 Sonnet scores higher on coding benchmarks: 39.0 versus 34.5 in the Noometry coding category.

### How many benchmarks do Claude 3.5 Sonnet and Inkling share?

24 benchmarks have published results for both models. Claude 3.5 Sonnet has 60 scored results on Noometry and Inkling has 41.