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Gemini 3.5 Flash vs Claude Opus 4.6

At a glance
GoogleGemini 3.5 Flash

Google's high-speed thinking model for agentic workflows, chat, and coding.

861.0M ctx$1.50/$9.00 per M#11/92
AnthropicClaude Opus 4.6

Anthropic's previous flagship for complex coding and professional work.

871M ctx$5.00/$25.00 per M#9/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
GoogleGemini 3.5 Flash
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper
Capability
CapabilityECI86.2
Reasoning & Knowledge
Graduate Science92.8%Expert-Level—Factual Recall68.4%
Math
Competition Math95.6%Research Math39.0%
Coding
Real-World Coding79.3%
Agentic
Terminal Tasks—Novel Reasoning72.1%
AnthropicClaude Opus 4.6
Reasoning
ReasoningInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Smarter
Capability
CapabilityECI86.8
Reasoning & Knowledge
Graduate Science—Expert-Level34.4%Factual Recall43.1%
Math
Competition Math—Research Math40.7%
Coding
Real-World Coding78.7%
Agentic
Terminal Tasks69.9%Novel Reasoning—
Specs
GoogleGemini 3.5 Flash
1.0M
Context
66K
Max output
May 2026
Released
AnthropicClaude Opus 4.6
1M
Context
128K
Max output
Feb 2026
Released
Capabilities
GoogleGemini 3.5 Flash
Vision
Audio
Reasoning
AnthropicClaude Opus 4.6
Vision
Audio
Reasoning
Pricing
GoogleGemini 3.5 Flash
Live pricing, shown before you run
Input$1.50/M tokens
Output$9.00/M tokens
Reasoning$9.00/M tokens
Cache read$0.15/M tokens
Cache write$0.08/M tokens
Image input$1.50/M tokens
Audio input$3.00/M tokens
Web search$0.01/search
AnthropicClaude Opus 4.6
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 3.5 FlashGo to model
Chat with Claude Opus 4.6Go to model
Frequently Asked Questions: Gemini 3.5 Flash vs Claude Opus 4.6▼

Which is better, Gemini 3.5 Flash or Claude Opus 4.6?

▼

Based on the Capability Index, Claude Opus 4.6 scores higher (86.8 vs 86.2). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.

Which is cheaper, Gemini 3.5 Flash or Claude Opus 4.6?

▼

Gemini 3.5 Flash has a lower blended cost. Gemini 3.5 Flash: $1.50 input / $9.00 output. Claude Opus 4.6: $5.00 input / $25.00 output.

Which has a larger context window, Gemini 3.5 Flash or Claude Opus 4.6?

▼

Gemini 3.5 Flash has a larger context window: Gemini 3.5 Flash supports 1M tokens vs Claude Opus 4.6 at 1M tokens.

Do both Gemini 3.5 Flash and Claude Opus 4.6 support vision?

▼

Yes, both Gemini 3.5 Flash and Claude Opus 4.6 support vision/image input.

Which has better coding performance, Gemini 3.5 Flash or Claude Opus 4.6?

▼

Gemini 3.5 Flash scores higher on SWE-bench Verified: Gemini 3.5 Flash resolves 79% vs Claude Opus 4.6 at 79%.

What are the key differences between Gemini 3.5 Flash and Claude Opus 4.6?

▼

Key differences: Gemini 3.5 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 3.5 Flash and Claude Opus 4.6 for free on idapt.app to see which performs better for your specific needs.

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