Pairwise benchmark snapshot · Aug 1, 2026
In this head-to-head showdown, Gemini 2.5 Pro delivers higher overall intelligence and human-preferred responses (Elo 1,350 vs 1,310), while Gemini 2.5 Pro leads in SWE-bench software engineering benchmarks (63.8%), while DeepSeek V3 is more budget-friendly at $1.1/1M per 1M output tokens, while Gemini 2.5 Pro provides faster response streaming (95 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
Prior DeepSeek flagship. Baseline for v3 vs v4.
Δ 40 Arena Elo pts
95 tok/s
$1.1 / 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 V3 | Gemini 2.5 Pro | Advantage Delta |
|---|---|---|---|
| Preference Elo | +40 | ||
| LiveBench | +1.7% | ||
| SWE-bench | +15.2% | ||
| GPQA Diamond | +17.3% | ||
| Time to first token | +170 ms | ||
| Output speed | 66 tok/s | 95 tok/s | +29 tok/s |
| Input price | $0.27/1M | $1.25/1M | +$0.98/1M |
| Output price | $1.1/1M | +$3.9/1M | |
| Context window | +1.9M |
Simulate monthly production API costs in USD (US Dollar).
DeepSeek V3 is estimated to save $92.80/month ($1,114/year).
Higher SWE-bench (63.8%).
Lower output list price ($1.1/1M).
Lower TTFT (210 ms).
Larger window (2M).
Gemini 2.5 Pro is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Gemini 2.5 Pro | Higher SWE-bench (63.8%). |
| High-volume chat | DeepSeek V3 | Lower output list price ($1.1/1M). |
| Voice / low-latency UI | Gemini 2.5 Pro | Lower TTFT (210 ms). |
| Long-document RAG | Gemini 2.5 Pro | Larger window (2M). |
| Screenshots / vision | Gemini 2.5 Pro | Gemini 2.5 Pro is the side marked multimodal in the catalog. |
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