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Anthropic

Claude Sonnet 4.6

VS
Google

Gemini 3.1 Pro

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

Decision Recommendation

👑 Editorial Verdict: Gemini 3.1 Pro strictly dominates Claude Sonnet 4.6 across all major dimensions. It is not only more cost-effective (blended cost of $4.50 vs $6.00 per 1M tokens) but also delivers superior coding accuracy (54.2% vs 0% on SWE-bench) and faster generation speeds (109 tps vs 54.3 tps). Unless you have platform lock-in, Gemini 3.1 Pro is the clear and optimal choice for all development workloads.

Model Specs

Claude Sonnet 4.6

Benchmarks & Scores

Coding (swe-bench-pro)
N/A
Reasoning (gpqa-diamond)
79.9%

Cost & Performance

Cost (per 1M tokens)
$6.00Input: $3.00 | Output: $15.00
Speed
54.3 tps
Context Window
1M tokens
Model Specs

Gemini 3.1 Pro

Benchmarks & Scores

Coding (swe-bench-pro)Winner (+)
54.2%
Reasoning (gpqa-diamond)Winner (+14.4%)
94.3%

Cost & Performance

Cost (per 1M tokens)1.3x cheaper
$4.50Input: $2.00 | Output: $12.00
Speed2.0x faster
109 tps
Context Window
1M tokens
Read our data collection methodology

Frequently Asked Questions

Gemini 3.1 Pro is cheaper than Claude Sonnet 4.6. Gemini 3.1 Pro has a blended cost of $4.50/1M tokens, which is about 1.3x cheaper than Claude Sonnet 4.6 at $6.00/1M tokens.

Gemini 3.1 Pro is faster than Claude Sonnet 4.6. Gemini 3.1 Pro generates 109 tokens per second (tps) compared to Claude Sonnet 4.6 which generates 54.3 tokens per second.

Gemini 3.1 Pro is better for coding tasks. It scores 54.2% on coding evaluations (swe-bench-pro) compared to Claude Sonnet 4.6 which scores N/A.

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