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Claude Sonnet 4 vs Gemini 2.0 Flash Thinking

Both models are evenly matched across the benchmarks.

Anthropic · Google · Updated for 2026

Which is better?

Claude Sonnet 4 outperforms in 1 benchmarks (GPQA), while Gemini 2.0 Flash Thinking is better at 1 benchmark (MMMU). Both models are evenly matched across the benchmarks.

Based on current benchmark, pricing, and model metadata for 2026.

Choose Claude Sonnet 4

  • you want the most recent training data — it shipped May 2025

Choose Gemini 2.0 Flash Thinking

  • you are already invested in the Google ecosystem

At a glance

The differences that matter most.

Claude Sonnet 4
Anthropic
Gemini 2.0 Flash Thinking
Google
Benchmark wins
1 of 2
1 of 2
Input price
$3.00 / M
— / M
Output price
$15.00 / M
— / M
Context window
200,000
—
Released
May 2025
Jan 2025
License
Proprietary
Proprietary

Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Claude Sonnet 4 outperforms in 1 benchmarks (GPQA), while Gemini 2.0 Flash Thinking is better at 1 benchmark (MMMU).

Both models are evenly matched across the benchmarks.

Wed Aug 26 2026 • llm-stats.com

Arena Performance

Playground indexes and blind preference scores

Context Window

Maximum input and output token capacity

Only Claude Sonnet 4 specifies input context (200,000 tokens). Only Claude Sonnet 4 specifies output context (64,000 tokens).

Anthropic
Claude Sonnet 4
Input200,000 tokens
Output64,000 tokens
Google
Gemini 2.0 Flash Thinking
Input- tokens
Output- tokens
Wed Aug 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Sonnet 4 and Gemini 2.0 Flash Thinking support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Sonnet 4

Text
Images
Audio
Video

Gemini 2.0 Flash Thinking

Text
Images
Audio
Video

License

Usage and distribution terms

Both models are licensed under proprietary licenses.

Both models have usage restrictions defined by their respective organizations.

Claude Sonnet 4

Proprietary

Closed source

Gemini 2.0 Flash Thinking

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Sonnet 4 was released on 2025-05-22, while Gemini 2.0 Flash Thinking was released on 2025-01-21.

Claude Sonnet 4 is 4 months newer than Gemini 2.0 Flash Thinking.

Claude Sonnet 4

May 22, 2025

1.3 years ago

4mo newer
Gemini 2.0 Flash Thinking

Jan 21, 2025

1.6 years ago

Knowledge Cutoff

When training data ends

Gemini 2.0 Flash Thinking has a documented knowledge cutoff of 2024-08-01, while Claude Sonnet 4's cutoff date is not specified.

We can confirm Gemini 2.0 Flash Thinking's training data extends to 2024-08-01, but cannot make a direct comparison without Claude Sonnet 4's cutoff date.

Claude Sonnet 4

—

Gemini 2.0 Flash Thinking

Aug 2024

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against Claude Sonnet 4 and Gemini 2.0 Flash Thinking side-by-side, then vote on the output you prefer.

Claude Sonnet 4
✓ Preferred
Gemini 2.0 Flash Thinking
Open in Playground

FAQ

Common questions about Claude Sonnet 4 vs Gemini 2.0 Flash Thinking.

Which is better, Claude Sonnet 4 or Gemini 2.0 Flash Thinking?

Both models are evenly matched across the benchmarks. Claude Sonnet 4 is made by Anthropic and Gemini 2.0 Flash Thinking is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Sonnet 4 compare to Gemini 2.0 Flash Thinking in benchmarks?

Claude Sonnet 4 scores MMMLU: 86.5%, TAU-bench Retail: 80.5%, GPQA: 75.4%, MMMU: 74.4%, SWE-Bench Verified: 72.7%. Gemini 2.0 Flash Thinking scores MMMU: 75.4%, GPQA: 74.2%, AIME 2024: 73.3%.

What are the context window sizes for Claude Sonnet 4 and Gemini 2.0 Flash Thinking?

Claude Sonnet 4 supports 200K tokens and Gemini 2.0 Flash Thinking supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

Who makes Claude Sonnet 4 and Gemini 2.0 Flash Thinking?

Claude Sonnet 4 is developed by Anthropic and Gemini 2.0 Flash Thinking is developed by Google.

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