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Claude Opus 4 vs Gemini 2.0 Flash

Claude Opus 4 leads the LLM Stats Score 27.8 to 16.6. Gemini 2.0 Flash is 171.4x cheaper per token.

Anthropic · Google · Updated for 2026

Which is better?

Claude Opus 4 leads the overall LLM Stats Score 27.8 to 16.6, ranking #138 overall.

In the 1 individual benchmarks reported for both models, Claude Opus 4 wins 1; this is a narrower head-to-head signal than the composite indexes.

On price, Gemini 2.0 Flash is roughly 171.4x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

Gemini 2.0 Flash also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.

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

Choose Claude Opus 4

  • overall performance matters — it scores 27.8 and ranks #138 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 May 2025

Choose Gemini 2.0 Flash

  • cost matters — it's about 171.4x cheaper per token
  • you process long inputs — it offers a 1,048,576 token context window

At a glance

The differences that matter most.

Claude Opus 4
Anthropic
Gemini 2.0 Flash
Google
Core performance indexes
LLM Stats Score
27.8
#138
16.6
#219
Reasoning
27.8
#131
15.9
#218
Coding
17.4
#119
1.7
#227
Cost, coverage & limits
Benchmark wins
1 of 1
0 of 1
Input price
$15.00 / M
$0.10 / M
Output price
$75.00 / M
$0.40 / M
Context window
200,000
1,048,576

Capability indexes

Additional strengths measured across groups of related public benchmarks

2 shared
Index
Claude Opus 4
Gemini 2.0 Flash
Math
20.3#157
23.4#130
Vision
12.5#98
8.0#137
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

9 reported for Claude Opus 4 · 13 for Gemini 2.0 Flash

1 shared

Claude Opus 4 outperforms in 1 benchmarks (GPQA), while Gemini 2.0 Flash is better at 0 benchmarks.

Claude Opus 4 significantly outperforms across most benchmarks.

Tue Sep 08 2026 • llm-stats.com

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

Gemini 2.0 Flash costs less

For input processing, Claude Opus 4 ($15.00/1M tokens) is 150.0x more expensive than Gemini 2.0 Flash ($0.10/1M tokens).

For output processing, Claude Opus 4 ($75.00/1M tokens) is 187.5x more expensive than Gemini 2.0 Flash ($0.40/1M tokens).

In conclusion, Claude Opus 4 is more expensive than Gemini 2.0 Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Tue Sep 08 2026 • llm-stats.com
Anthropic
Claude Opus 4
Input tokens$15.00
Output tokens$75.00
Best providerAnthropic
Google
Gemini 2.0 Flash
Input tokens$0.10
Output tokens$0.40
Best providerGoogle
Notice missing or incorrect data?Start an Issue→

Context Window

Maximum input and output token capacity

Gemini 2.0 Flash accepts 1,048,576 input tokens compared to Claude Opus 4's 200,000 tokens. Claude Opus 4 can generate longer responses up to 32,000 tokens, while Gemini 2.0 Flash is limited to 8,192 tokens.

Anthropic
Claude Opus 4
Input200,000 tokens
Output32,000 tokens
Google
Gemini 2.0 Flash
Input1,048,576 tokens
Output8,192 tokens
Tue Sep 08 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Opus 4 and Gemini 2.0 Flash support multimodal inputs.

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

Claude Opus 4

Text
Images
Audio
Video

Gemini 2.0 Flash

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 Opus 4

Proprietary

Closed source

Gemini 2.0 Flash

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Opus 4 was released on 2025-05-22, while Gemini 2.0 Flash was released on 2024-12-01.

Claude Opus 4 is 6 months newer than Gemini 2.0 Flash.

Claude Opus 4

May 22, 2025

1.3 years ago

5mo newer
Gemini 2.0 Flash

Dec 1, 2024

1.8 years ago

Knowledge Cutoff

When training data ends

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

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

Claude Opus 4

—

Gemini 2.0 Flash

Aug 2024

Provider Availability

Claude Opus 4 is available from Anthropic, Bedrock, Google. Gemini 2.0 Flash is available from Google.

Claude Opus 4

anthropic logo
Anthropic
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
bedrock logo
AWS Bedrock
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M
google logo
Google
Input Price:Input: $15.00/1MOutput Price:Output: $75.00/1M

Gemini 2.0 Flash

google logo
Google
Input Price:Input: $0.10/1MOutput Price:Output: $0.40/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

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

Claude Opus 4
✓ Preferred
Gemini 2.0 Flash
Open in Playground

FAQ

Common questions about Claude Opus 4 vs Gemini 2.0 Flash.

Which is better, Claude Opus 4 or Gemini 2.0 Flash?

Claude Opus 4 leads the LLM Stats Score 27.8 to 16.6. Claude Opus 4 is made by Anthropic and Gemini 2.0 Flash 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 Opus 4 compare to Gemini 2.0 Flash in benchmarks?

Claude Opus 4 scores MMMLU: 88.8%, TAU-bench Retail: 81.4%, GPQA: 79.6%, MMMU (validation): 76.5%, AIME 2025: 75.5%. Gemini 2.0 Flash scores Natural2Code: 92.9%, MATH: 89.7%, FACTS Grounding: 83.6%, MMLU-Pro: 76.4%, EgoSchema: 71.5%.

Is Claude Opus 4 cheaper than Gemini 2.0 Flash?

Gemini 2.0 Flash is 150.0x cheaper for input tokens. Claude Opus 4 costs $15.00/M input and $75.00/M output via anthropic. Gemini 2.0 Flash costs $0.10/M input and $0.40/M output via google.

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

Claude Opus 4 supports 200K tokens and Gemini 2.0 Flash supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Opus 4 and Gemini 2.0 Flash?

Key differences include LLM Stats Score (27.8 vs 16.6), context window (200K vs 1.0M), input pricing ($15.00 vs $0.10/M). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Opus 4 and Gemini 2.0 Flash?

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

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