AnthropicClaude Haiku 4.5VSGoogleGemini 2.5 Flash
Our Take
We recommend Claude Haiku 4.5 for its clear benchmark advantage, or the 2.4x cheaper Gemini 2.5 Flash only if your budget requires optimizing costs for very high-volume pipelines. While Claude Haiku 4.5 offers superior reasoning and coding, it carries a moderate price premium. Choose Claude Haiku 4.5 for quality, or Gemini 2.5 Flash for cost optimization.
▶WHY?
Benchmark Calculations & Evidence:
Coding Benchmarks: Both models were evaluated on the SWE-bench Verified benchmark. Claude Haiku 4.5 scored 73.3%, while Gemini 2.5 Flash scored 60.4%.
Reasoning Benchmarks: Both models were evaluated on the GPQA Diamond benchmark. Claude Haiku 4.5 scored 73%, while Gemini 2.5 Flash scored 68.3%.
Cost Efficiency: Gemini 2.5 Flash pricing ($0.3/M input, $2.5/M output) is 2.4x cheaper than Claude Haiku 4.5 ($1/M input, $5/M output).
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Benchmarks & Scores
Coding (swe-bench-verified)Winner (+12.9%)
73.3%multi-file code and clearly defined tasks
Reasoning (gpqa-diamond)Winner (+4.7%)
73%graduate-level science QA
Cost & Context
Cost (per 1M tokens)
$2.00Input: $1.00 | Output: $5.00Context Window
200k tokensBenchmarks & Scores
Coding (swe-bench-verified)
60.4%multi-file code and clearly defined tasks
Reasoning (gpqa-diamond)
68.3%graduate-level science QA
Cost & Context
Cost (per 1M tokens)2.4x cheaper
$0.85Input: $0.30 | Output: $2.50Context WindowLarger
1.05M tokensFrequently Asked Questions about Claude Haiku 4.5 vs Gemini 2.5 Flash
Gemini 2.5 Flash is cheaper than Claude Haiku 4.5. Gemini 2.5 Flash has a blended cost of $0.85/1M tokens, which is about 2.4x cheaper than Claude Haiku 4.5 at $2.00/1M tokens.
Claude Haiku 4.5 is better for coding tasks on this benchmark. It scores 73.3% on swe-bench-verified (multi-file code and clearly defined tasks) compared to Gemini 2.5 Flash which scores 60.4%.
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