Pairwise benchmark snapshot · Aug 16, 2026
In this head-to-head showdown, DeepSeek V4 Flash delivers higher overall intelligence and human-preferred responses (Elo 1,490 vs 1,260), while DeepSeek V4 Flash leads in SWE-bench software engineering benchmarks (71.2%), while DeepSeek V4 Flash is more budget-friendly at $0.28/1M per 1M output tokens. 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 Jul 31 2026 price-performance SKU. Public listings put it near $0.14/$0.28 per 1M tokens.
First million-token Gemini Pro. Baseline for 1.5 vs 2.5 vs 3.x Pro.
Currently comparing DeepSeek V4 Flash vs Gemini 1.5 Pro. Alternative family tiers available.
Δ 230 Arena Elo pts
142 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 V4 Flash | Gemini 1.5 Pro | Advantage Delta |
|---|---|---|---|
| Preference Elo | +230 | ||
| Coding Elo | — | — | |
| LiveBench | +18.6% | ||
| SWE-bench | +33.2% | ||
| GPQA Diamond | +23.6% | ||
| Time to first token | +75 ms | ||
| Output speed | 142 tok/s | 70 tok/s | +72 tok/s |
| Input price | $0.14/1M | $1.25/1M | +$1.11/1M |
| Output price | $0.28/1M | +$4.72/1M | |
| Context window | +1.8M |
Simulate monthly production API costs in USD (US Dollar).
DeepSeek V4 Flash is estimated to save $109.65/month ($1,316/year).
Higher SWE-bench (71.2%).
Lower output list price ($0.28/1M).
Lower TTFT (165 ms).
Larger window (2M).
Gemini 1.5 Pro is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | DeepSeek V4 Flash | Higher SWE-bench (71.2%). |
| High-volume chat | DeepSeek V4 Flash | Lower output list price ($0.28/1M). |
| Voice / low-latency UI | DeepSeek V4 Flash | Lower TTFT (165 ms). |
| Long-document RAG | Gemini 1.5 Pro | Larger window (2M). |
| Screenshots / vision | Gemini 1.5 Pro | Gemini 1.5 Pro is the side marked multimodal in the catalog. |
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