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Gemini 3.8 Flash vs Claude Sonnet 4.6

At a glance

Google's most intelligent Flash model, with significant gains over 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.

1.0M ctx$0.75/$3.75 per M

Anthropic's previous-generation Sonnet, with strong performance across coding, agents, and professional work.

851M ctx$3.00/$15.00 per M#14/92
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper75%
Capability
Capability—
Coding
Real-World Coding—
Agentic
Terminal Tasks—Novel Reasoning—
Reasoning
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI84.8
Coding
Real-World Coding75.2%
Agentic
Terminal Tasks53.4%Novel Reasoning60.4%
Specs
1.0M
Context
66K
Max output
Sep 2026
Released
1M
Context
128K
Max output
Feb 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input75%$0.75/M tokens
Output75%$3.75/M tokens
Reasoning$3.75/M tokens
Cache read75%$0.07/M tokens
Cache write99%$0.04/M tokens
Image input$0.75/M tokens
Audio input$0.75/M tokens
Web search$0.01/search
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 search29%$0.01/search
Chat with Gemini 3.8 FlashGo to model
Chat with Claude Sonnet 4.6Go to model
Frequently Asked Questions: Gemini 3.8 Flash vs Claude Sonnet 4.6▼

Which is better, Gemini 3.8 Flash or Claude Sonnet 4.6?

▼

Both Gemini 3.8 Flash and Claude Sonnet 4.6 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Gemini 3.8 Flash or Claude Sonnet 4.6?

▼

Gemini 3.8 Flash has a lower blended cost. Gemini 3.8 Flash: $0.75 input / $3.75 output. Claude Sonnet 4.6: $3.00 input / $15.00 output.

Which has a larger context window, Gemini 3.8 Flash or Claude Sonnet 4.6?

▼

Gemini 3.8 Flash has a larger context window: Gemini 3.8 Flash supports 1M tokens vs Claude Sonnet 4.6 at 1M tokens.

Do both Gemini 3.8 Flash and Claude Sonnet 4.6 support vision?

▼

Yes, both Gemini 3.8 Flash and Claude Sonnet 4.6 support vision/image input.

What are the key differences between Gemini 3.8 Flash and Claude Sonnet 4.6?

▼

Key differences: Gemini 3.8 Flash 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 3.8 Flash and Claude Sonnet 4.6 for free on idapt.app to see which performs better for your specific needs.

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