Pairwise benchmark snapshot · Aug 17, 2026
This page compares DeepSeek Coder V2 (DeepSeek) and GPT-4o (OpenAI) using the latest snapshots we have as of Aug 17, 2026. On preference Elo, DeepSeek Coder V2 is ahead by 30 points (1,365 vs 1,335; lmarena (Aug 17, 2026)). On SWE-bench coding, DeepSeek Coder V2 resolves 60.5% versus 54.8% (swebench (Aug 17, 2026)). GPT-4o streams faster (110 tok/s) while DeepSeek Coder V2 is the cheaper output token ($0.28/1M). DeepSeek Coder V2 has the larger context window (128k 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.
DeepSeek
DeepSeek Coder V2DeepSeek open-weight Mixture-of-Experts coding model supporting 338 programming languages and 128k context.
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.
30 pts advantage
35 tok/s faster
$9.72/1M cheaper
Simulate monthly production API costs based on published $/1M tokens.
DeepSeek Coder V2 is estimated to save $228.40/month ($2,741/year).
Higher SWE-bench (60.5%).
Lower output list price ($0.28/1M).
Lower TTFT (180 ms).
Larger window (128k).
GPT-4o is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | DeepSeek Coder V2 | Higher SWE-bench (60.5%). |
| High-volume chat | DeepSeek Coder V2 | Lower output list price ($0.28/1M). |
| Voice / low-latency UI | GPT-4o | Lower TTFT (180 ms). |
| Long-document RAG | DeepSeek Coder V2 | Larger window (128k). |
| Screenshots / vision | GPT-4o | GPT-4o is the side marked multimodal in the catalog. |
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