Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, DeepSeek V4 Pro delivers higher overall intelligence and human-preferred responses (Elo 1,536 vs 1,495), while Gemini 3 Flash leads in SWE-bench software engineering benchmarks (75.8%), while Gemini 3 Flash is more budget-friendly at $3/1M 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
Open-weight-adjacent DeepSeek flagship. High reasoning density per dollar.
Fast Google frontier-adjacent model. Near-top official SWE-bench at a fraction of Opus price.
Currently comparing DeepSeek V4 Pro vs Gemini 3 Flash. Alternative family tiers available.
Simulate accuracy gains vs added response time & token cost
Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.
Δ 41 Arena Elo pts
190 tok/s
$3 / 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 Pro | Gemini 3 Flash | Advantage Delta |
|---|---|---|---|
| Preference Elo | +41 | ||
| Coding Elo | +34 | ||
| LiveBench | +3.3% | ||
| SWE-bench | +4.2% | ||
| GPQA Diamond | +5.6% | ||
| Time to first token | +315 ms | ||
| Output speed | 70 tok/s | 190 tok/s | +120 tok/s |
| Input price | $1.32/1M | $0.5/1M | +$0.82/1M |
| Output price | $3.96/1M | +$0.96/1M | |
| Context window | — |
Simulate monthly production API costs in USD (US Dollar).
Gemini 3 Flash is estimated to save $43.10/month ($517/year).
Higher SWE-bench (75.8%).
Lower output list price ($3/1M).
Lower TTFT (95 ms).
Larger window (1M).
Gemini 3 Flash is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Gemini 3 Flash | Higher SWE-bench (75.8%). |
| High-volume chat | Gemini 3 Flash | Lower output list price ($3/1M). |
| Voice / low-latency UI | Gemini 3 Flash | Lower TTFT (95 ms). |
| Long-document RAG | DeepSeek V4 Pro | Larger window (1M). |
| Screenshots / vision | Gemini 3 Flash | Gemini 3 Flash is the side marked multimodal in the catalog. |
Top DeepSeek vs top Anthropic Elo. Usually V4 Pro vs Opus 5. License and invoice decide as much as Elo.
2026-06 open-weight-adjacent flagship. The usual cheap-vs-Claude question starts here.
March 2026 speed SKU. Still a useful cheap-coding compare even after 3.6/3.7 Flash.
Jan 2025 reasoning model. Still searched. V4 Pro is the newer DeepSeek buy.
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Verified Head-to-Head Telemetry
compare · Jun 13, 2026
DeepSeek vs Claude: the cheap-versus-frontier question, remapped
launch · Jun 12, 2026
DeepSeek V4 Pro: high reasoning density per dollar
launch · Mar 16, 2026
Gemini 3 Flash: near-top official SWE-bench at a fraction of Opus
launch · Jan 20, 2025
DeepSeek R1 stays as the open-weights RL baseline
