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Claude Sonnet 4 vs Gemini 2.5 Flash: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 8, 2026

⚡ Quick Answer

Compare Claude Sonnet 4 and Gemini 2.5 Flash across pricing, benchmarks, and capabilities.

Updated: April 8, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureClaude Sonnet 4Gemini 2.5 Flash
ProviderAnthropicGoogle
Input Price / 1M tokens$3.00$0.150
Output Price / 1M tokens$15.00$0.600
Context Window
200K
1M
Max Output Tokens
64,000
8,192
Arena ELO
1,280
1,270
Coding ELO
1,305
1,260
TTFT (ms)
320
150
Tokens/sec
78
100
MultimodalYesYes
JSON ModeYesYes
Function CallingYesYes
VisionYesNo
When to Use Claude Sonnet 4

Claude Sonnet 4 excels at coding, analysis, long-context, agents tasks.

Strengths:

  • Best-in-class coding performance
  • 200K context window
  • Excellent instruction following

Best for:

codinganalysislong-contextagents
When to Use Gemini 2.5 Flash

Gemini 2.5 Flash excels at multimodal, general-purpose, coding tasks.

Strengths:

  • Latest Gemini model
  • Improved reasoning
  • Strong multimodal

Best for:

multimodalgeneral-purposecoding

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