Model comparison
Codestral vs Hy4 preview
Hy4 preview is the stronger model overall, scoring 45.3 to 30.6 on the Noometry Index. Codestral costs 2.5× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.
Last verified . 0 shared benchmarks.
Mistral AI
TencentSummary
- The widest gap is in coding, where Hy4 preview leads 51.6 to 27.3.
- Codestral is cheaper at $0.30 / $0.90 per million input/output tokens, against $0.75 / $2.25 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 256K.
- Hy4 preview has downloadable open weights; the other is API-only.
Side by side
| Codestral | Hy4 preview | |
|---|---|---|
| Provider | Mistral AI | Tencent |
| Noometry Index | 30.6 | 45.3 |
| Released | 2024-05-29 | 2026-08-28 |
| Weights | Proprietary | Open |
| Context window | 256K | 1.05M |
| Max output | 8K | 64K |
| Input $ / M tokens | $0.30 | $0.75 |
| Output $ / M tokens | $0.90 | $2.25 |
| Results tracked | 7 | 3 |
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Category by category
Coding Hy4 preview leads
Codestral: 27.3 (#321), Hy4 preview: 51.6 (#38)
| Benchmark | Codestral | Hy4 preview |
|---|---|---|
| Aider Polyglot | 11.1% | — |
| LMArena WebDev | — | 1632 |
| BigCodeBench Instruct | 41.8% | — |
| BigCodeBench Complete | 52.5% | — |
| ALE-Bench | 137.78 | — |
| HumanEval+ | 73.8% | — |
| MBPP+ | 61.9% | — |
Reasoning Hy4 preview leads
Codestral: 19.8 (#251), Hy4 preview: 31.9 (#79)
| Benchmark | Codestral | Hy4 preview |
|---|---|---|
| Kagi LLM Benchmark | 32.5% | — |
| NYT Connections (extended) | — | 68.2% |
Math Not comparable
Codestral: —, Hy4 preview: 55.7 (#42)
| Benchmark | Codestral | Hy4 preview |
|---|---|---|
| ProofBench | — | 75% |
Frequently asked questions
Is Codestral better than Hy4 preview?
Hy4 preview is the stronger model overall, scoring 45.3 to 30.6 on the Noometry Index. Codestral costs 2.5× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.
Which is cheaper, Codestral or Hy4 preview?
Codestral is cheaper. It lists at $0.30 per million input tokens and $0.90 per million output tokens; Hy4 preview lists at $0.75 and $2.25.
Is Codestral or Hy4 preview better for coding?
Hy4 preview scores higher on coding benchmarks: 51.6 versus 27.3 in the Noometry coding category.
Which has the bigger context window?
Hy4 preview does, with 1.05M tokens against 256K.
How many benchmarks do Codestral and Hy4 preview share?
0 benchmarks have published results for both models. Codestral has 7 scored results on Noometry and Hy4 preview has 3.