DeepSeekDeepSeek V4 FlashVSGoogleGemini 2.5 Flash-Lite
Our Take
We recommend DeepSeek V4 Flash for superior overall value and reasoning capabilities, as it is cheaper or equal in cost while delivering peak intelligence. While DeepSeek V4 Flash excels at complex complex codebases, multi-file repositories, and architectural planning, Gemini 2.5 Flash-Lite is suited for scripting multi-file code and clearly defined tasks. Choose DeepSeek V4 Flash for architectural codebase planning, or Gemini 2.5 Flash-Lite if you specifically require its simpler functions profile.
▶WHY?
Benchmark Calculations & Evidence:
Coding Evaluation: DeepSeek V4 Flash was evaluated on SWE-bench Pro (scoring 49.1%), while Gemini 2.5 Flash-Lite was evaluated on SWE-bench Verified (scoring 41.3%).
Reasoning Accuracy: Both models were evaluated on the GPQA Diamond benchmark. DeepSeek V4 Flash scored 80%, while Gemini 2.5 Flash-Lite scored 62.5%.
Cost Efficiency: Gemini 2.5 Flash-Lite pricing ($0.1/M input, $0.4/M output) is 1.0x cheaper than DeepSeek V4 Flash ($0.14/M input, $0.28/M output).
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Benchmarks & Scores
Coding (swe-bench-pro)
49.1%complex codebases, multi-file repositories, and architectural planning
Reasoning (gpqa-diamond)Winner (+17.5%)
80%graduate-level science QA
Cost & Context
Cost (per 1M tokens)
$0.17Input: $0.14 | Output: $0.28Context Window
1.05M tokensBenchmarks & Scores
Coding (swe-bench-verified)
41.3%multi-file code and clearly defined tasks
Reasoning (gpqa-diamond)
62.5%graduate-level science QA
Cost & Context
Cost (per 1M tokens)
$0.17Input: $0.10 | Output: $0.40Context Window
1.05M tokensFrequently Asked Questions about DeepSeek V4 Flash vs Gemini 2.5 Flash-Lite
Both DeepSeek V4 Flash and Gemini 2.5 Flash-Lite cost the same, with a blended cost of $0.17 per 1 million tokens.
For coding tasks, DeepSeek V4 Flash scores 49.1% on swe-bench-pro (complex codebases, multi-file repositories, and architectural planning), while Gemini 2.5 Flash-Lite scores 41.3% on swe-bench-verified (multi-file code and clearly defined tasks).
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