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AnthropicClaude Haiku 4.5VSGoogleGemini 3 Flash

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

Our Take

We recommend choosing Gemini 3 Flash because it outperforms or matches Claude Haiku 4.5 across reasoning, coding, and context capacity while being cheaper or equal in cost. Choose Gemini 3 Flash for superior overall value.
WHY?
Benchmark Calculations & Evidence:
  • Coding Benchmarks: Both models were evaluated on the SWE-bench Verified benchmark. Gemini 3 Flash scored 78%, while Claude Haiku 4.5 scored 73.3%.
  • Reasoning Benchmarks: Both models were evaluated on the GPQA Diamond benchmark. Gemini 3 Flash scored 90.4%, while Claude Haiku 4.5 scored 73%.
  • Context Window: Gemini 3 Flash supports a 1M context window compared to 200k for Claude Haiku 4.5.
  • Cost Comparison: Gemini 3 Flash blended CPM is $0.5/$3 compared to $1/$5 for Claude Haiku 4.5.
  • Was this recommendation helpful?
    Model Specs

    Claude Haiku 4.5

    Benchmarks & Scores

    Coding (swe-bench-verified)
    73.3%

    multi-file code and clearly defined tasks

    Reasoning (gpqa-diamond)
    73%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)
    $2.00Input: $1.00 | Output: $5.00
    Context Window
    200k tokens
    Model Specs

    Gemini 3 Flash

    Benchmarks & Scores

    Coding (swe-bench-verified)Winner (+4.7%)
    78%

    multi-file code and clearly defined tasks

    Reasoning (gpqa-diamond)Winner (+17.4%)
    90.4%

    graduate-level science QA

    Cost & Context

    Cost (per 1M tokens)1.8x cheaper
    $1.13Input: $0.50 | Output: $3.00
    Context WindowLarger
    1.05M tokens

    Frequently Asked Questions about Claude Haiku 4.5 vs Gemini 3 Flash

    Gemini 3 Flash is cheaper than Claude Haiku 4.5. Gemini 3 Flash has a blended cost of $1.13/1M tokens, which is about 1.8x cheaper than Claude Haiku 4.5 at $2.00/1M tokens.

    Gemini 3 Flash is better for coding tasks on this benchmark. It scores 78% on swe-bench-verified (multi-file code and clearly defined tasks) compared to Claude Haiku 4.5 which scores 73.3%.

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