Pairwise benchmark snapshot · Aug 16, 2026
This page compares Codestral 25.01 (Mistral) and GPT-4o (OpenAI) using the latest snapshots we have as of Aug 16, 2026. On preference Elo, GPT-4o is ahead by 15 points (1,335 vs 1,320; seed-bootstrap (Aug 1, 2026)). On SWE-bench coding, GPT-4o resolves 54.8% versus 51.8% (seed-bootstrap (Aug 1, 2026)). Codestral 25.01 streams faster (148 tok/s) while Codestral 25.01 is the cheaper output token ($0.9/1M). Codestral 25.01 has the larger context window (256k tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.
OpenAI
GPT-4oPrevious OpenAI flagship. Still a common compare baseline on legacy pages.
Instant pairwise benchmark recalculation across 400+ LLMs
Category wins across intelligence, speed, and pricing efficiency.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.
15 pts advantage
38 tok/s faster
$9.10/1M cheaper
Simulate monthly production API costs based on published $/1M tokens.
Codestral 25.01 is estimated to save $213.50/month ($2,562/year).
Higher SWE-bench (54.8%).
Lower output list price ($0.9/1M).
Lower TTFT (150 ms).
Larger window (256k).
GPT-4o is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | GPT-4o | Higher SWE-bench (54.8%). |
| High-volume chat | Codestral 25.01 | Lower output list price ($0.9/1M). |
| Voice / low-latency UI | Codestral 25.01 | Lower TTFT (150 ms). |
| Long-document RAG | Codestral 25.01 | Larger window (256k). |
| Screenshots / vision | GPT-4o | GPT-4o is the side marked multimodal in the catalog. |
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