Pairwise benchmark snapshot · Aug 1, 2026
In this head-to-head showdown, DeepSeek Coder V2 delivers higher overall intelligence and human-preferred responses (Elo 1,365 vs 1,295), while DeepSeek Coder V2 leads in SWE-bench software engineering benchmarks (60.5%), while DeepSeek Coder V2 is more budget-friendly at $0.28/1M per 1M output tokens, while Gemini 2.5 Flash provides faster response streaming (185 tok/s). Review the complete breakdown below to determine which model best fits your performance and budget requirements.
9 direct benchmark disciplines evaluated across capability, speed, and cost
DeepSeek open-weight Mixture-of-Experts coding model supporting 338 programming languages and 128k context.
Previous Google speed workhorse.
Δ 70 Arena Elo pts
185 tok/s
$0.28 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.
Category wins across reasoning intelligence, generation speed, and token cost.
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
| Benchmark | DeepSeek Coder V2 | Gemini 2.5 Flash | Advantage Delta |
|---|---|---|---|
| Preference Elo | +70 | ||
| Coding Elo | — | — | |
| LiveBench | +7.2% | ||
| SWE-bench | +12.5% | ||
| GPQA Diamond | +2% | ||
| Time to first token | +180 ms | ||
| Output speed | 75 tok/s | 185 tok/s | +110 tok/s |
| Input price | $0.14/1M | $0.1/1M | +$0.04/1M |
| Output price | $0.28/1M | $0.4/1M | +$0.12/1M |
| Context window | +872k |
Simulate monthly production API costs in USD (US Dollar).
DeepSeek Coder V2 is estimated to save $0.40/month ($5/year).
Higher SWE-bench (60.5%).
Lower output list price ($0.28/1M).
Lower TTFT (110 ms).
Larger window (1M).
Gemini 2.5 Flash 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 | Gemini 2.5 Flash | Lower TTFT (110 ms). |
| Long-document RAG | Gemini 2.5 Flash | Larger window (1M). |
| Screenshots / vision | Gemini 2.5 Flash | Gemini 2.5 Flash is the side marked multimodal in the catalog. |
No comments posted on this matchup yet. Be the first to share an evaluation note!
Dynamic OpenGraph banner generated at /compare/deepseek-coder-v2-vs-gemini-2-5-flash/opengraph-image
Verified Head-to-Head Telemetry