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DeepSeek

DeepSeek V4 Flash

VS
Google

Gemini 3.1 Pro

✍️ Analysis by:the whichllmmodel Editorial Team|📅 Updated: June 2026

Decision Recommendation

⚖️ Editorial Verdict: In our analysis, Gemini 3.1 Pro is the premium intelligence choice, scoring 5.1% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: DeepSeek V4 Flash is 25.7x cheaper to run and delivers 1.0x faster throughput. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, DeepSeek V4 Flash offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of Gemini 3.1 Pro fully justifies the cost.

Model Specs

DeepSeek V4 Flash

Benchmarks & Scores

Coding (swe-bench-pro)
49.1%
Reasoning (gpqa-diamond)
80%

Cost & Performance

Cost (per 1M tokens)25.7x cheaper
$0.17Input: $0.14 | Output: $0.28
Speed
109.1 tps
Context Window
1M tokens
Model Specs

Gemini 3.1 Pro

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+5.1%)
54.2%
Reasoning (gpqa-diamond)Winner (+14.3%)
94.3%

Cost & Performance

Cost (per 1M tokens)
$4.50Input: $2.00 | Output: $12.00
Speed
109 tps
Context Window
1M tokens
Read our data collection methodology

Frequently Asked Questions

DeepSeek V4 Flash is cheaper than Gemini 3.1 Pro. DeepSeek V4 Flash has a blended cost of $0.17/1M tokens, which is about 25.7x cheaper than Gemini 3.1 Pro at $4.50/1M tokens.

DeepSeek V4 Flash is faster than Gemini 3.1 Pro. DeepSeek V4 Flash generates 109.1 tokens per second (tps) compared to Gemini 3.1 Pro which generates 109 tokens per second.

Gemini 3.1 Pro is better for coding tasks. It scores 54.2% on coding evaluations (swe-bench-pro) compared to DeepSeek V4 Flash which scores 49.1%.

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