Model comparison
Claude 2 vs Inkling
Inkling is the stronger model overall, scoring 44.1 to 25.0 on the Noometry Index.
Last verified . 4 shared benchmarks.
Summary
- They share 4 benchmarks with published results for both. Claude 2 scores higher in 0 categories and Inkling in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Inkling leads 55.1 to 16.9.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.5% for Claude 2 and 88.9% for Inkling.
- Inkling has downloadable open weights; the other is API-only.
Side by side
| Claude 2 | Inkling | |
|---|---|---|
| Provider | Anthropic | Thinking Machines Lab |
| Noometry Index | 25.0 | 44.1 |
| Released | 2023-07-11 | 2026-07-15 |
| Weights | Proprietary | Open |
| Context window | — | 66K |
| Max output | — | 66K |
| Input $ / M tokens | — | $1.87 |
| Output $ / M tokens | — | $4.68 |
| Results tracked | 8 | 41 |
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Category by category
Coding Not comparable
Claude 2: —, Inkling: 34.5 (#234)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| FrontierCode | — | 14% |
| LMArena WebDev | — | 1413 |
| FrontierSWE | — | 4.1% |
| SciCode | — | 47% |
| WeirdML | — | 32.3% |
| LMArena Coding | — | 1464 |
| ALE-Bench | — | 946 |
| HumanEval+ | 61.6% | — |
Agentic & Tool Use Not comparable
Claude 2: —, Inkling: 29.6 (#85)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| APEX-Agents | — | 33.8% |
| τ²-bench Banking | — | 25% |
Reasoning Inkling leads
Claude 2: 21.7 (#216), Inkling: 40.4 (#56)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| DTBench | 51.9% | 87.5% |
| Epoch Capabilities Index | 120.13 | 148.54 |
| ARC-AGI-2 | — | 36.5% |
| SimpleBench | — | 50% |
| ARC-AGI-1 | — | 79.5% |
| CritPt | — | 5.4% |
| Chess Puzzles | — | 21% |
| LMArena Hard Prompts | — | 1451 |
| LMCA | — | 37.6% |
Math Inkling leads
Claude 2: 9.3 (#320), Inkling: 31.3 (#225)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 88.9% |
| FrontierMath (Tiers 1-3) | — | 33.3% |
| FrontierMath Tier 4 | — | 4.9% |
| ProofBench | — | 0% |
| LMArena Math | — | 1479 |
| MATH Level 5 | 11.7% | — |
Knowledge Inkling leads
Claude 2: 16.9 (#287), Inkling: 55.1 (#49)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| GPQA Diamond | 34.7% | 88.3% |
| SimpleQA Verified | — | 40.3% |
| LMArena Expert | — | 1465 |
| MMLU | 78.5% | — |
| TriviaQA | 87.5% | — |
Multilingual Not comparable
Claude 2: —, Inkling: 54.0 (#52)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| LMArena Non-English | — | 1434 |
| LMArena Chinese | — | 1490 |
| LMArena French | — | 1458 |
| LMArena German | — | 1446 |
| LMArena Japanese | — | 1429 |
| LMArena Korean | — | 1404 |
| LMArena Russian | — | 1429 |
| LMArena Spanish | — | 1448 |
Instruction Following Not comparable
Claude 2: —, Inkling: 75.1 (#71)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| LMArena Instruction Following | — | 1426 |
Long Context Not comparable
Claude 2: —, Inkling: 43.8 (#86)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| LMArena Longer Query | — | 1434 |
Writing & Preference Not comparable
Claude 2: —, Inkling: 65.2 (#51)
| Benchmark | Claude 2 | Inkling |
|---|---|---|
| LMArena Text | — | 1441 |
| LMArena Creative Writing | — | 1387 |
| EQ-Bench Creative Writing | — | 1611 |
| EQ-Bench 4 | — | 1226 |
| LMArena Multi-Turn | — | 1436 |
Frequently asked questions
Is Claude 2 better than Inkling?
Inkling is the stronger model overall, scoring 44.1 to 25.0 on the Noometry Index.
How many benchmarks do Claude 2 and Inkling share?
4 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and Inkling has 41.