Claude Sonnet 5 vs Gemini 3.6 Flash: Specs & Benchmark Comparison

CharacteristicClaude Sonnet 5Gemini 3.6 Flash
CompanyAnthropicGoogle
Release DateJune 30, 2026July 21, 2026
Parameters
MultimodalYesYes
Context (input)1.0M1.0M
Context (output)64K66K
Input Price / 1M$2.00$1.50
Output Price / 1M$10.00$7.50
Average Score0.60.8
Benchmarks
OSWorld-Verified0.80.8
CharXiv-R0.90.9

Visual Benchmark Comparison

Claude Sonnet 5
Gemini 3.6 Flash
OSWorld-Verified0.8 vs 0.8
0.8
0.8
CharXiv-R0.9 vs 0.9
0.9
0.9

Verdict

Gemini 3.6 Flash leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: Claude Sonnet 5 — 0.6, Gemini 3.6 Flash — 0.8.

API Cost

Gemini 3.6 Flash is 1.3x cheaper: input $1.50/1M vs $2.00/1M tokens.

Context Window

Same context size: 1M tokens.

Recency

Gemini 3.6 Flash is newer: released 7/21/2026 vs 6/30/2026.

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Frequently Asked Questions

Which is better for coding — Claude Sonnet 5 or Gemini 3.6 Flash?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — Claude Sonnet 5 or Gemini 3.6 Flash?
Gemini 3.6 Flash is cheaper for input: $1.50 per 1M tokens vs $2.00.
Which has a larger context window — Claude Sonnet 5 or Gemini 3.6 Flash?
Claude Sonnet 5 supports a larger context: 1,000,000 tokens vs 1,000,000.

The Claude Sonnet 5 and Gemini 3.6 Flash comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Sonnet 5 or Gemini 3.6 Flash page. See also the complete list of AI model comparisons.