Compare AI models
| Specifications | ||
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality. | 7B | — |
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider. | 256k | 128k |
| Overview | ||
| Company | Mistral | OpenAI |
| Release date | Jul 16 2024 | Feb 12 2026 |
| Access | Open Weight | Closed |
| Model details | View model | View model |
Other comparisons
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Codestral Mamba 7B and GPT-5.3-Codex-Spark don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Codestral Mamba 7B shipped 576 days before GPT-5.3-Codex-Spark, so benchmark comparisons should account for the intervening progress.
Context windows are 256k (Codestral Mamba 7B) vs 128k (GPT-5.3-Codex-Spark). Codestral Mamba 7B is open weight, while GPT-5.3-Codex-Spark is closed.
Direct benchmark comparisons are unavailable — Codestral Mamba 7B and GPT-5.3-Codex-Spark don't publish scores on any of the same benchmarks.