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Gemini 3.6 Flash vs GPT 5.5 Pro

At a glance

Google's high-efficiency model for coding, agentic workflows, and web and app development.

1.0M ctx$1.50/$7.50 per M

OpenAI's high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads.

921.1M ctx$30.00/$180.00 per M#1/92
Agent Demos
All agent demos

No shared agent demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-21
Cheaper96%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Competition Math—Research Math—
Agentic
Terminal Tasks78.0%Novel Reasoning—
Reasoning
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI91.8
Reasoning & Knowledge
Graduate Science93.9%Factual Recall64.5%
Math
Competition Math100.0%Research Math52.4%
Agentic
Terminal Tasks—Novel Reasoning84.6%
Specs
1.0M
Context
66K
Max output
Jul 2026
Released
1.1M
Context
128K
Max output
Apr 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input95%$1.50/M tokens
Output96%$7.50/M tokens
Reasoning$7.50/M tokens
Cache read$0.15/M tokens
Cache write$0.08/M tokens
Image input$1.50/M tokens
Audio input$1.50/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input$30.00/M tokens
Output$180.00/M tokens
Web search29%$0.01/search
Chat with Gemini 3.6 FlashGo to model
Chat with GPT 5.5 ProGo to model
Frequently Asked Questions: Gemini 3.6 Flash vs GPT 5.5 Pro▼

Which is better, Gemini 3.6 Flash or GPT 5.5 Pro?

▼

Both Gemini 3.6 Flash and GPT 5.5 Pro 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 3.6 Flash or GPT 5.5 Pro?

▼

Gemini 3.6 Flash has a lower blended cost. Gemini 3.6 Flash: $1.50 input / $7.50 output. GPT 5.5 Pro: $30.00 input / $180.00 output.

Which has a larger context window, Gemini 3.6 Flash or GPT 5.5 Pro?

▼

GPT 5.5 Pro has a larger context window: Gemini 3.6 Flash supports 1M tokens vs GPT 5.5 Pro at 1.1M tokens.

Do both Gemini 3.6 Flash and GPT 5.5 Pro support vision?

▼

Yes, both Gemini 3.6 Flash and GPT 5.5 Pro support vision/image input.

What are the key differences between Gemini 3.6 Flash and GPT 5.5 Pro?

▼

Key differences: Gemini 3.6 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 3.6 Flash and GPT 5.5 Pro for free on idapt.app to see which performs better for your specific needs.

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