Claude Opus 4.6 vs Gemini 3.1 Flash-Lite Comparison

Comparing Claude Opus 4.6 and Gemini 3.1 Flash-Lite across benchmarks, pricing, and capabilities.

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.

Sun Mar 15 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
Sun Mar 15 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

Gemini 3.1 Flash-Lite accepts 1,000,000 input tokens compared to Claude Opus 4.6's 200,000 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
Input200,000 tokens
Output128,000 tokens
Google
Gemini 3.1 Flash-Lite
Input1,000,000 tokens
Output65,536 tokens
Sun Mar 15 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

1 months ago

Gemini 3.1 Flash-Lite

Mar 3, 2026

1 weeks 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. The availability of providers can affect quality of the model and reliability.

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

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%)
Larger context window (1,000,000 tokens)
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