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Gemini 3.1 Flash Lite vs Claude Sonnet 4.5

At a glance
GoogleGemini 3.1 Flash Lite

Google's high-efficiency model for high-volume use cases at half the cost of Gemini 3 Flash.

771.0M ctx$0.25/$1.50 per M#37/92
AnthropicClaude Sonnet 4.5

High-performance model for real-world agents and coding.

791M ctx$3.00/$15.00 per M#28/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
GoogleGemini 3.1 Flash Lite
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI76.7
Reasoning & Knowledge
Graduate Science—Expert-Level8.6%Factual Recall—
Math
Competition Math—Research Math—
Coding
Real-World Coding—
Agentic
Terminal Tasks—Novel Reasoning—
AnthropicClaude Sonnet 4.5
Reasoning
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter
Capability
CapabilityECI78.9
Reasoning & Knowledge
Graduate Science73.7%Expert-Level—Factual Recall13.0%
Math
Competition Math35.6%Research Math9.3%
Coding
Real-World Coding71.3%
Agentic
Terminal Tasks42.8%Novel Reasoning3.8%
Specs
GoogleGemini 3.1 Flash Lite
1.0M
Context
66K
Max output
Mar 2026
Released
AnthropicClaude Sonnet 4.5
1M
Context
64K
Max output
Sep 2025
Released
Capabilities
GoogleGemini 3.1 Flash Lite
Vision
Audio
Reasoning
AnthropicClaude Sonnet 4.5
Vision
Audio
Reasoning
Pricing
GoogleGemini 3.1 Flash Lite
Live pricing, shown before you run
Input$0.25/M tokens
Output$1.50/M tokens
Reasoning$1.50/M tokens
Cache read$0.02/M tokens
Cache write$0.08/M tokens
Image input$0.25/M tokens
Audio input$0.50/M tokens
Web search$0.01/search
AnthropicClaude Sonnet 4.5
Live pricing, shown before you run
Input$3.00/M tokens
Output$15.00/M tokens
Cache read$0.30/M tokens
Cache write$3.75/M tokens
Web search$0.01/search
Chat with Gemini 3.1 Flash LiteGo to model
Chat with Claude Sonnet 4.5Go to model
Frequently Asked Questions: Gemini 3.1 Flash Lite vs Claude Sonnet 4.5▼

Which is better, Gemini 3.1 Flash Lite or Claude Sonnet 4.5?

▼

Based on the Capability Index, Claude Sonnet 4.5 scores higher (78.9 vs 76.7). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, Gemini 3.1 Flash Lite or Claude Sonnet 4.5?

▼

Gemini 3.1 Flash Lite has a lower blended cost. Gemini 3.1 Flash Lite: $0.25 input / $1.50 output. Claude Sonnet 4.5: $3.00 input / $15.00 output.

Which has a larger context window, Gemini 3.1 Flash Lite or Claude Sonnet 4.5?

▼

Gemini 3.1 Flash Lite has a larger context window: Gemini 3.1 Flash Lite supports 1M tokens vs Claude Sonnet 4.5 at 1M tokens.

Do both Gemini 3.1 Flash Lite and Claude Sonnet 4.5 support vision?

▼

Yes, both Gemini 3.1 Flash Lite and Claude Sonnet 4.5 support vision/image input.

What are the key differences between Gemini 3.1 Flash Lite and Claude Sonnet 4.5?

▼

Key differences: Gemini 3.1 Flash Lite is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Gemini 3.1 Flash Lite and Claude Sonnet 4.5 for free on idapt.app to see which performs better for your specific needs.

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