Model comparison
C4ai Aya Expanse 8b vs Qwen3 8B
C4ai Aya Expanse 8b is the stronger model overall, scoring 34.9 to 33.7 on the Noometry Index.
Last verified . 1 shared benchmarks.
Cohere
Alibaba (Qwen)Summary
- They share 1 benchmark with published results for both. C4ai Aya Expanse 8b scores higher in 1 category and Qwen3 8B in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where C4ai Aya Expanse 8b leads 22.4 to 16.6.
Side by side
| C4ai Aya Expanse 8b | Qwen3 8B | |
|---|---|---|
| Provider | Cohere | Alibaba (Qwen) |
| Noometry Index | 34.9 | 33.7 |
| Released | — | 2025-04 |
| Weights | Open | Open |
| Context window | — | 131K |
| Max output | — | 8K |
| Input $ / M tokens | — | $0.18 |
| Output $ / M tokens | — | $0.70 |
| Results tracked | 15 | 11 |
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Category by category
Coding Too close to call
C4ai Aya Expanse 8b: 33.8 (#252), Qwen3 8B: 34.0 (#248)
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| SciCode | — | 22.6% |
| LMArena Coding | 1160 | — |
Agentic & Tool Use Not comparable
C4ai Aya Expanse 8b: —, Qwen3 8B: 30.2 (#78)
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 42.6% |
Reasoning C4ai Aya Expanse 8b leads
C4ai Aya Expanse 8b: 22.4 (#197), Qwen3 8B: 16.6 (#303)
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| CritPt | — | 0% |
| Chess Puzzles | — | 5% |
| LMArena Hard Prompts | 1156 | — |
| DTBench | — | 59.7% |
| LMCA | — | 8.8% |
| Epoch Capabilities Index | — | 136.17 |
Math Qwen3 8B leads
C4ai Aya Expanse 8b: 33.3 (#203), Qwen3 8B: 34.9 (#191)
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 56.1% |
| LMArena Math | 1168 | — |
Knowledge Qwen3 8B leads
C4ai Aya Expanse 8b: 33.6 (#201), Qwen3 8B: 36.1 (#173)
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| Vectara Hallucination Rate | 9.5% | 4.8% |
| GPQA Diamond | — | 56.8% |
| LMArena Expert | 1153 | — |
Multilingual Not comparable
C4ai Aya Expanse 8b: 36.1 (#242), Qwen3 8B: —
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| LMArena Non-English | 1180 | — |
| LMArena Chinese | 1181 | — |
| LMArena German | 1188 | — |
| LMArena Japanese | 1120 | — |
| LMArena Russian | 1197 | — |
Instruction Following Not comparable
C4ai Aya Expanse 8b: 60.1 (#253), Qwen3 8B: —
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| LMArena Instruction Following | 1155 | — |
Long Context Qwen3 8B leads
C4ai Aya Expanse 8b: 36.1 (#236), Qwen3 8B: 37.9 (#210)
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| Fiction.LiveBench | — | 62.1% |
| LMArena Longer Query | 1191 | — |
Writing & Preference Not comparable
C4ai Aya Expanse 8b: 39.0 (#250), Qwen3 8B: —
| Benchmark | C4ai Aya Expanse 8b | Qwen3 8B |
|---|---|---|
| LMArena Text | 1185 | — |
| LMArena Creative Writing | 1168 | — |
| LMArena Multi-Turn | 1160 | — |
Frequently asked questions
Is C4ai Aya Expanse 8b better than Qwen3 8B?
C4ai Aya Expanse 8b is the stronger model overall, scoring 34.9 to 33.7 on the Noometry Index.
Is C4ai Aya Expanse 8b or Qwen3 8B better for coding?
They score almost the same on coding (33.8 vs 34.0); test both on your own repository before choosing.
How many benchmarks do C4ai Aya Expanse 8b and Qwen3 8B share?
1 benchmark has published results for both models. C4ai Aya Expanse 8b has 15 scored results on Noometry and Qwen3 8B has 11.