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Claude 3 Opus vs Gemini 2.0 Flash Thinking

Gemini 2.0 Flash Thinking leads the LLM Stats Score 16.7 to 9.9.

Anthropic · Google · Updated for 2026

Which is better?

Gemini 2.0 Flash Thinking leads the overall LLM Stats Score 16.7 to 9.9, ranking #218 overall.

In the 1 individual benchmarks reported for both models, Gemini 2.0 Flash Thinking wins 1; this is a narrower head-to-head signal than the composite indexes.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude 3 Opus

  • you want predictable pricing at $15.00/M input and $75.00/M output

Choose Gemini 2.0 Flash Thinking

  • overall performance matters — it scores 16.7 and ranks #218 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you value its reported benchmark strengths — it wins 1 of 1 exact shared results
  • you want the most recent training data — it shipped Jan 2025

At a glance

The differences that matter most.

Claude 3 Opus
Anthropic
Gemini 2.0 Flash Thinking
Google
Core performance indexes
LLM Stats Score
9.9
#266
16.7
#218
Reasoning
9.8
#260
17.0
#211
Cost, coverage & limits
Benchmark wins
0 of 1
1 of 1
Input price
$15.00 / M
— / M
Output price
$75.00 / M
— / M
Context window
200,000
—

Individual benchmarks

11 reported for Claude 3 Opus · 3 for Gemini 2.0 Flash Thinking

1 shared

Claude 3 Opus outperforms in 0 benchmarks, while Gemini 2.0 Flash Thinking is better at 1 benchmark (GPQA).

Gemini 2.0 Flash Thinking significantly outperforms across most benchmarks.

Fri Sep 11 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude 3 Opus specifies input context (200,000 tokens). Only Claude 3 Opus specifies output context (200,000 tokens).

Anthropic
Claude 3 Opus
Input200,000 tokens
Output200,000 tokens
Google
Gemini 2.0 Flash Thinking
Input- tokens
Output- tokens
Fri Sep 11 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude 3 Opus and Gemini 2.0 Flash Thinking support multimodal inputs.

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

Claude 3 Opus

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 3 Opus

Proprietary

Closed source

Gemini 2.0 Flash Thinking

Proprietary

Closed source

Release Timeline

When each model was launched

Claude 3 Opus was released on 2024-02-29, while Gemini 2.0 Flash Thinking was released on 2025-01-21.

Gemini 2.0 Flash Thinking is 11 months newer than Claude 3 Opus.

Claude 3 Opus

Feb 29, 2024

2.5 years ago

Gemini 2.0 Flash Thinking

Jan 21, 2025

1.6 years ago

10mo newer

Knowledge Cutoff

When training data ends

Gemini 2.0 Flash Thinking has a documented knowledge cutoff of 2024-08-01, while Claude 3 Opus'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 3 Opus's cutoff date.

Claude 3 Opus

—

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 3 Opus and Gemini 2.0 Flash Thinking side-by-side, then vote on the output you prefer.

Claude 3 Opus
✓ Preferred
Gemini 2.0 Flash Thinking
Open in Playground

FAQ

Common questions about Claude 3 Opus vs Gemini 2.0 Flash Thinking.

Which is better, Claude 3 Opus or Gemini 2.0 Flash Thinking?

Gemini 2.0 Flash Thinking leads the LLM Stats Score 16.7 to 9.9. Claude 3 Opus is made by Anthropic and Gemini 2.0 Flash Thinking is made by Google. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude 3 Opus compare to Gemini 2.0 Flash Thinking in benchmarks?

Claude 3 Opus scores ARC-C: 96.4%, HellaSwag: 95.4%, GSM8k: 95.0%, MGSM: 90.7%, BIG-Bench Hard: 86.8%. Gemini 2.0 Flash Thinking scores MMMU: 75.4%, GPQA: 74.2%, AIME 2024: 73.3%.

What are the context window sizes for Claude 3 Opus and Gemini 2.0 Flash Thinking?

Claude 3 Opus 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.

What are the main differences between Claude 3 Opus and Gemini 2.0 Flash Thinking?

Key differences include LLM Stats Score (9.9 vs 16.7). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3 Opus and Gemini 2.0 Flash Thinking?

Claude 3 Opus is developed by Anthropic and Gemini 2.0 Flash Thinking is developed by Google.

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