Model Comparison

Claude Opus 4.6 vs Gemini 3.1 Flash-Lite

Claude Opus 4.6 significantly outperforms across most benchmarks. Gemini 3.1 Flash-Lite is 17.8x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

6 benchmarks

Claude Opus 4.6 outperforms in 6 benchmarks (CharXiv-R, GPQA, Humanity's Last Exam, MMMLU, MMMU-Pro, MRCR v2 (8-needle)), while Gemini 3.1 Flash-Lite is better at 0 benchmarks.

Claude Opus 4.6 significantly outperforms across most benchmarks.

Sat Apr 18 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 3.1 Flash-Lite costs less

For input processing, Claude Opus 4.6 ($5.00/1M tokens) is 20.0x more expensive than Gemini 3.1 Flash-Lite ($0.25/1M tokens).

For output processing, Claude Opus 4.6 ($25.00/1M tokens) is 16.7x more expensive than Gemini 3.1 Flash-Lite ($1.50/1M tokens).

In conclusion, Claude Opus 4.6 is more expensive than Gemini 3.1 Flash-Lite.*

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

Lowest available price from all providers
Sat Apr 18 2026 • llm-stats.com
Anthropic
Claude Opus 4.6
Input tokens$5.00
Output tokens$25.00
Best providerAnthropic
Google
Gemini 3.1 Flash-Lite
Input tokens$0.25
Output tokens$1.50
Best providerGoogle
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Context Window

Maximum input and output token capacity

Both models have the same input context window of 1,000,000 tokens. Claude Opus 4.6 can generate longer responses up to 128,000 tokens, while Gemini 3.1 Flash-Lite is limited to 65,536 tokens.

Anthropic
Claude Opus 4.6
Input1,000,000 tokens
Output128,000 tokens
Google
Gemini 3.1 Flash-Lite
Input1,000,000 tokens
Output65,536 tokens
Sat Apr 18 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Opus 4.6 and Gemini 3.1 Flash-Lite support multimodal inputs.

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

Claude Opus 4.6

Text
Images
Audio
Video

Gemini 3.1 Flash-Lite

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 4.6

Proprietary

Closed source

Gemini 3.1 Flash-Lite

Proprietary

Closed source

Release Timeline

When each model was launched

Claude Opus 4.6 was released on 2026-02-05, while Gemini 3.1 Flash-Lite was released on 2026-03-03.

Gemini 3.1 Flash-Lite is 1 month newer than Claude Opus 4.6.

Claude Opus 4.6

Feb 5, 2026

2 months ago

Gemini 3.1 Flash-Lite

Mar 3, 2026

1 months ago

3w newer

Knowledge Cutoff

When training data ends

Gemini 3.1 Flash-Lite has a documented knowledge cutoff of 2025-01-31, while Claude Opus 4.6's cutoff date is not specified.

We can confirm Gemini 3.1 Flash-Lite's training data extends to 2025-01-31, but cannot make a direct comparison without Claude Opus 4.6's cutoff date.

Claude Opus 4.6

—

Gemini 3.1 Flash-Lite

Jan 2025

Provider Availability

Claude Opus 4.6 is available from Anthropic. Gemini 3.1 Flash-Lite is available from Google.

Claude Opus 4.6

anthropic logo
Anthropic
Input Price:Input: $5.00/1MOutput Price:Output: $25.00/1M

Gemini 3.1 Flash-Lite

google logo
Google
Input Price:Input: $0.25/1MOutput Price:Output: $1.50/1M
* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

Anthropic
Higher CharXiv-R score (77.4% vs 73.2%)
Higher GPQA score (91.3% vs 86.9%)
Higher Humanity's Last Exam score (53.1% vs 16.0%)
Higher MMMLU score (91.1% vs 88.9%)
Higher MMMU-Pro score (77.3% vs 76.8%)
Higher MRCR v2 (8-needle) score (93.0% vs 60.1%)
Google
Less expensive input tokens
Less expensive output tokens

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude Opus 4.6
Google
Gemini 3.1 Flash-Lite

FAQ

Common questions about Claude Opus 4.6 vs Gemini 3.1 Flash-Lite

Claude Opus 4.6 significantly outperforms across most benchmarks. Claude Opus 4.6 is made by Anthropic and Gemini 3.1 Flash-Lite is made by Google. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
Claude Opus 4.6 scores Vending-Bench 2: 100.0%, AIME 2025: 99.8%, Tau2 Telecom: 99.3%, Graphwalks parents >128k: 95.4%, MRCR v2 (8-needle): 93.0%. Gemini 3.1 Flash-Lite scores MMMLU: 88.9%, GPQA: 86.9%, VideoMMMU: 84.8%, MMMU-Pro: 76.8%, CharXiv-R: 73.2%.
Gemini 3.1 Flash-Lite is 20.0x cheaper for input tokens. Claude Opus 4.6 costs $5.00/M input and $25.00/M output via anthropic. Gemini 3.1 Flash-Lite costs $0.25/M input and $1.50/M output via google.
Claude Opus 4.6 supports 1.0M tokens and Gemini 3.1 Flash-Lite supports 1.0M tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.
Key differences include input pricing ($5.00 vs $0.25/M). See the full comparison above for benchmark-by-benchmark results.
Claude Opus 4.6 is developed by Anthropic and Gemini 3.1 Flash-Lite is developed by Google.