Model comparison
Codestral vs Qwen3.5 Plus
Qwen3.5 Plus is the stronger model overall, scoring 42.3 to 30.1 on the Noometry Index. Codestral costs 2.0× less per token, which makes it the better buy when Qwen3.5 Plus's lead doesn't matter for your workload.
Last verified . 1 shared benchmarks.
Mistral AI
Alibaba (Qwen)Summary
- They share 1 benchmark with published results for both. Codestral scores higher in 0 categories and Qwen3.5 Plus in 1 category; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where Qwen3.5 Plus leads 32.0 to 19.1.
- Codestral is cheaper at $0.30 / $0.90 per million input/output tokens, against $0.40 / $2.40 for Qwen3.5 Plus.
- Qwen3.5 Plus accepts more context: 1M tokens versus 256K.
- Codestral has downloadable open weights; the other is API-only.
Side by side
| Codestral | Qwen3.5 Plus | |
|---|---|---|
| Provider | Mistral AI | Alibaba (Qwen) |
| Noometry Index | 30.1 | 42.3 |
| Released | 2024-05-29 | 2026-02-16 |
| Weights | Open | Proprietary |
| Context window | 256K | 1M |
| Max output | 4K | 66K |
| Input $ / M tokens | $0.30 | $0.40 |
| Output $ / M tokens | $0.90 | $2.40 |
| Results tracked | 7 | 15 |
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Category by category
Coding Not comparable
Codestral: 26.9 (#316), Qwen3.5 Plus: —
| Benchmark | Codestral | Qwen3.5 Plus |
|---|---|---|
| ALE-Bench | 137.78 | 621.92 |
| Aider Polyglot | 11.1% | — |
| BigCodeBench Instruct | 41.8% | — |
| BigCodeBench Complete | 52.5% | — |
| HumanEval+ | 73.8% | — |
| MBPP+ | 61.9% | — |
Agentic & Tool Use Not comparable
Codestral: —, Qwen3.5 Plus: —
| Benchmark | Codestral | Qwen3.5 Plus |
|---|---|---|
| Vending-Bench 2 | — | 0.54 |
Reasoning Qwen3.5 Plus leads
Codestral: 19.1 (#244), Qwen3.5 Plus: 32.0 (#67)
| Benchmark | Codestral | Qwen3.5 Plus |
|---|---|---|
| Kagi LLM Benchmark | 32.5% | — |
| Chess Puzzles | — | 22% |
| Mystery Game Puzzles | — | 17% |
| DTBench | — | 80.5% |
| LMCA | — | 36.4% |
| Epoch Capabilities Index | — | 146.79 |
Math Not comparable
Codestral: —, Qwen3.5 Plus: 47.9 (#55)
| Benchmark | Codestral | Qwen3.5 Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 86.7% |
| FrontierMath (Feb 2025 set) | — | 21% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge Not comparable
Codestral: —, Qwen3.5 Plus: 46.0 (#78)
| Benchmark | Codestral | Qwen3.5 Plus |
|---|---|---|
| GPQA Diamond | — | 84.8% |
| SimpleQA Verified | — | 25.4% |
| Vectara Hallucination Rate | — | 10.7% |
Long Context Not comparable
Codestral: —, Qwen3.5 Plus: 42.9 (#109)
| Benchmark | Codestral | Qwen3.5 Plus |
|---|---|---|
| CL-bench | — | 19.8% |
| CL-bench Life | — | 12.4% |
Frequently asked questions
Is Codestral better than Qwen3.5 Plus?
Qwen3.5 Plus is the stronger model overall, scoring 42.3 to 30.1 on the Noometry Index. Codestral costs 2.0× less per token, which makes it the better buy when Qwen3.5 Plus's lead doesn't matter for your workload.
Which is cheaper, Codestral or Qwen3.5 Plus?
Codestral is cheaper. It lists at $0.30 per million input tokens and $0.90 per million output tokens; Qwen3.5 Plus lists at $0.40 and $2.40.
Which has the bigger context window?
Qwen3.5 Plus does, with 1M tokens against 256K.
How many benchmarks do Codestral and Qwen3.5 Plus share?
1 benchmark has published results for both models. Codestral has 7 scored results on Noometry and Qwen3.5 Plus has 15.