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Gemini 3.1 Flash Lite vs Claude Opus 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 Opus 4.5

Anthropic's frontier reasoning model for complex software engineering and agentic workflows.

81200K ctx$5.00/$25.00 per M#22/92
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%
Math
Competition Math—Research Math—
Coding
Real-World Coding—
Agentic
Terminal Tasks—Novel Reasoning—Task Horizon—
AnthropicClaude Opus 4.5
Reasoning
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter
Capability
CapabilityECI81.4
Reasoning & Knowledge
Graduate Science80.7%Expert-Level—
Math
Competition Math48.1%Research Math20.7%
Coding
Real-World Coding76.7%
Agentic
Terminal Tasks63.1%Novel Reasoning7.8%Task Horizon4.9h
Specs
GoogleGemini 3.1 Flash Lite
1.0M
Context
66K
Max output
Mar 2026
Released
AnthropicClaude Opus 4.5
200K
Context
64K
Max output
Nov 2025
Released
Capabilities
GoogleGemini 3.1 Flash Lite
Vision
Audio
Reasoning
AnthropicClaude Opus 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 Opus 4.5
Live pricing, shown before you run
Input$5.00/M tokens
Output$25.00/M tokens
Cache read$0.50/M tokens
Cache write$6.25/M tokens
Web search$0.01/search
Chat with Gemini 3.1 Flash LiteGo to model
Chat with Claude Opus 4.5Go to model
Frequently Asked Questions: Gemini 3.1 Flash Lite vs Claude Opus 4.5▼

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

▼

Based on the Capability Index, Claude Opus 4.5 scores higher (81.4 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 Opus 4.5?

▼

Gemini 3.1 Flash Lite has a lower blended cost. Gemini 3.1 Flash Lite: $0.25 input / $1.50 output. Claude Opus 4.5: $5.00 input / $25.00 output.

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

▼

Gemini 3.1 Flash Lite has a larger context window: Gemini 3.1 Flash Lite supports 1M tokens vs Claude Opus 4.5 at 200K tokens.

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

▼

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

What are the key differences between Gemini 3.1 Flash Lite and Claude Opus 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 Opus 4.5 for free on idapt.app to see which performs better for your specific needs.

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