Model comparison
C4ai Aya Expanse 32b vs Nova Premier 1.0
Nova Premier 1.0 is the stronger model overall, scoring 38.3 to 35.9 on the Noometry Index.
Last verified . 0 shared benchmarks.
CohereSummary
- The widest gap is in writing & preference, where Nova Premier 1.0 leads 51.0 to 42.2.
- Nova Premier 1.0 accepts more context: 1M tokens versus 128K.
- C4ai Aya Expanse 32b has downloadable open weights; the other is API-only.
Side by side
| C4ai Aya Expanse 32b | Nova Premier 1.0 | |
|---|---|---|
| Provider | Cohere | Amazon |
| Noometry Index | 35.9 | 38.3 |
| Released | 2024-10-24 | 2025-04-30 |
| Weights | Open | Proprietary |
| Context window | 128K | 1M |
| Max output | 4K | 10K |
| Input $ / M tokens | — | $2.50 |
| Output $ / M tokens | — | $12.50 |
| Results tracked | 18 | 6 |
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Category by category
Coding Not comparable
C4ai Aya Expanse 32b: 34.8 (#231), Nova Premier 1.0: —
| Benchmark | C4ai Aya Expanse 32b | Nova Premier 1.0 |
|---|---|---|
| LMArena Coding | 1197 | — |
Reasoning Too close to call
C4ai Aya Expanse 32b: 23.3 (#180), Nova Premier 1.0: 23.0 (#185)
| Benchmark | C4ai Aya Expanse 32b | Nova Premier 1.0 |
|---|---|---|
| Kagi LLM Benchmark | — | 44.8% |
| LMArena Hard Prompts | 1193 | — |
Math Too close to call
C4ai Aya Expanse 32b: 34.0 (#197), Nova Premier 1.0: 33.8 (#199)
| Benchmark | C4ai Aya Expanse 32b | Nova Premier 1.0 |
|---|---|---|
| Omni-MATH | — | 35% |
| LMArena Math | 1200 | — |
Knowledge Nova Premier 1.0 leads
C4ai Aya Expanse 32b: 33.2 (#206), Nova Premier 1.0: 35.8 (#180)
| Benchmark | C4ai Aya Expanse 32b | Nova Premier 1.0 |
|---|---|---|
| MMLU-Pro | — | 72.6% |
| Vectara Hallucination Rate | 10.9% | — |
| GPQA (HELM) | — | 51.8% |
| LMArena Expert | 1182 | — |
Multilingual Not comparable
C4ai Aya Expanse 32b: 38.4 (#230), Nova Premier 1.0: —
| Benchmark | C4ai Aya Expanse 32b | Nova Premier 1.0 |
|---|---|---|
| LMArena Non-English | 1213 | — |
| LMArena Chinese | 1211 | — |
| LMArena French | 1248 | — |
| LMArena German | 1199 | — |
| LMArena Japanese | 1163 | — |
| LMArena Korean | 1158 | — |
| LMArena Russian | 1227 | — |
| LMArena Spanish | 1193 | — |
Instruction Following Nova Premier 1.0 leads
C4ai Aya Expanse 32b: 62.6 (#237), Nova Premier 1.0: 66.8 (#204)
| Benchmark | C4ai Aya Expanse 32b | Nova Premier 1.0 |
|---|---|---|
| IFEval | — | 80.3% |
| LMArena Instruction Following | 1196 | — |
Long Context Not comparable
C4ai Aya Expanse 32b: 37.2 (#220), Nova Premier 1.0: —
| Benchmark | C4ai Aya Expanse 32b | Nova Premier 1.0 |
|---|---|---|
| LMArena Longer Query | 1228 | — |
Writing & Preference Nova Premier 1.0 leads
C4ai Aya Expanse 32b: 42.2 (#235), Nova Premier 1.0: 51.0 (#178)
| Benchmark | C4ai Aya Expanse 32b | Nova Premier 1.0 |
|---|---|---|
| LMArena Text | 1224 | — |
| LMArena Creative Writing | 1200 | — |
| WildBench | — | 78.8% |
| LMArena Multi-Turn | 1190 | — |
Frequently asked questions
Is C4ai Aya Expanse 32b better than Nova Premier 1.0?
Nova Premier 1.0 is the stronger model overall, scoring 38.3 to 35.9 on the Noometry Index.
Which has the bigger context window?
Nova Premier 1.0 does, with 1M tokens against 128K.
How many benchmarks do C4ai Aya Expanse 32b and Nova Premier 1.0 share?
0 benchmarks have published results for both models. C4ai Aya Expanse 32b has 18 scored results on Noometry and Nova Premier 1.0 has 6.