Model comparison
C4ai Aya Expanse 8b vs Inkling
Inkling is the stronger model overall, scoring 44.1 to 34.9 on the Noometry Index.
Last verified . 14 shared benchmarks.
CohereSummary
- They share 14 benchmarks with published results for both. C4ai Aya Expanse 8b scores higher in 1 category and Inkling in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Inkling leads 65.2 to 39.0.
Side by side
| C4ai Aya Expanse 8b | Inkling | |
|---|---|---|
| Provider | Cohere | Thinking Machines Lab |
| Noometry Index | 34.9 | 44.1 |
| Released | — | 2026-07-15 |
| Weights | Open | Open |
| Context window | — | 66K |
| Max output | — | 66K |
| Input $ / M tokens | — | $1.87 |
| Output $ / M tokens | — | $4.68 |
| Results tracked | 15 | 41 |
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Category by category
Coding Too close to call
C4ai Aya Expanse 8b: 33.8 (#252), Inkling: 34.5 (#234)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| LMArena Coding | 1160 | 1464 |
| FrontierCode | — | 14% |
| LMArena WebDev | — | 1413 |
| FrontierSWE | — | 4.1% |
| SciCode | — | 47% |
| WeirdML | — | 32.3% |
| ALE-Bench | — | 946 |
Agentic & Tool Use Not comparable
C4ai Aya Expanse 8b: —, Inkling: 29.6 (#85)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| APEX-Agents | — | 33.8% |
| τ²-bench Banking | — | 25% |
Reasoning Inkling leads
C4ai Aya Expanse 8b: 22.4 (#197), Inkling: 40.4 (#56)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| LMArena Hard Prompts | 1156 | 1451 |
| ARC-AGI-2 | — | 36.5% |
| SimpleBench | — | 50% |
| ARC-AGI-1 | — | 79.5% |
| CritPt | — | 5.4% |
| Chess Puzzles | — | 21% |
| DTBench | — | 87.5% |
| LMCA | — | 37.6% |
| Epoch Capabilities Index | — | 148.54 |
Math C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 33.3 (#203), Inkling: 31.3 (#225)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| LMArena Math | 1168 | 1479 |
| FrontierMath (Tiers 1-3) | — | 33.3% |
| FrontierMath Tier 4 | — | 4.9% |
| OTIS Mock AIME 2024-2025 | — | 88.9% |
| ProofBench | — | 0% |
Knowledge Inkling leads
C4ai Aya Expanse 8b: 33.6 (#201), Inkling: 55.1 (#49)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| LMArena Expert | 1153 | 1465 |
| GPQA Diamond | — | 88.3% |
| SimpleQA Verified | — | 40.3% |
| Vectara Hallucination Rate | 9.5% | — |
Multilingual Inkling leads
C4ai Aya Expanse 8b: 36.1 (#242), Inkling: 54.0 (#52)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| LMArena Non-English | 1180 | 1434 |
| LMArena Chinese | 1181 | 1490 |
| LMArena German | 1188 | 1446 |
| LMArena Japanese | 1120 | 1429 |
| LMArena Russian | 1197 | 1429 |
| LMArena French | — | 1458 |
| LMArena Korean | — | 1404 |
| LMArena Spanish | — | 1448 |
Instruction Following Inkling leads
C4ai Aya Expanse 8b: 60.1 (#253), Inkling: 75.1 (#71)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| LMArena Instruction Following | 1155 | 1426 |
Long Context Inkling leads
C4ai Aya Expanse 8b: 36.1 (#236), Inkling: 43.8 (#86)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| LMArena Longer Query | 1191 | 1434 |
Writing & Preference Inkling leads
C4ai Aya Expanse 8b: 39.0 (#250), Inkling: 65.2 (#51)
| Benchmark | C4ai Aya Expanse 8b | Inkling |
|---|---|---|
| LMArena Text | 1185 | 1441 |
| LMArena Creative Writing | 1168 | 1387 |
| LMArena Multi-Turn | 1160 | 1436 |
| EQ-Bench Creative Writing | — | 1611 |
| EQ-Bench 4 | — | 1226 |
Frequently asked questions
Is C4ai Aya Expanse 8b better than Inkling?
Inkling is the stronger model overall, scoring 44.1 to 34.9 on the Noometry Index.
Is C4ai Aya Expanse 8b or Inkling better for coding?
They score almost the same on coding (33.8 vs 34.5); test both on your own repository before choosing.
How many benchmarks do C4ai Aya Expanse 8b and Inkling share?
14 benchmarks have published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and Inkling has 41.