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GPT 6 Astra Pro vs Gemini 3.5 Flash-Lite

At a glance

OpenAI's GPT-6 Astra served in pro reasoning mode for the hardest problems.

1.1M ctx$10.00/$50.00 per M

Google's high-efficiency model for focused subagent work and multi-agent workflows.

1.0M ctx$0.30/$2.50 per M
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
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper96%
Specs
1.1M
Context
128K
Max output
Sep 2026
Released
1.0M
Context
66K
Max output
Jul 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$10.00/M tokens
Output$50.00/M tokens
Cache read$1.00/M tokens
Cache write$12.50/M tokens
Web search29%$0.01/search
Live pricing, shown before you run
Input97%$0.30/M tokens
Output95%$2.50/M tokens
Reasoning$2.50/M tokens
Cache read97%$0.03/M tokens
Cache write99%$0.08/M tokens
Image input$0.30/M tokens
Audio input$0.30/M tokens
Web search$0.01/search
Chat with GPT 6 Astra ProGo to model
Chat with Gemini 3.5 Flash-LiteGo to model
Frequently Asked Questions: GPT 6 Astra Pro vs Gemini 3.5 Flash-Lite▼

Which is better, GPT 6 Astra Pro or Gemini 3.5 Flash-Lite?

▼

Both GPT 6 Astra Pro and Gemini 3.5 Flash-Lite 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, GPT 6 Astra Pro or Gemini 3.5 Flash-Lite?

▼

Gemini 3.5 Flash-Lite has a lower blended cost. GPT 6 Astra Pro: $10.00 input / $50.00 output. Gemini 3.5 Flash-Lite: $0.30 input / $2.50 output.

Which has a larger context window, GPT 6 Astra Pro or Gemini 3.5 Flash-Lite?

▼

GPT 6 Astra Pro has a larger context window: GPT 6 Astra Pro supports 1.1M tokens vs Gemini 3.5 Flash-Lite at 1M tokens.

Do both GPT 6 Astra Pro and Gemini 3.5 Flash-Lite support vision?

▼

Yes, both GPT 6 Astra Pro and Gemini 3.5 Flash-Lite support vision/image input.

What are the key differences between GPT 6 Astra Pro and Gemini 3.5 Flash-Lite?

▼

Key differences: Gemini 3.5 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 GPT 6 Astra Pro and Gemini 3.5 Flash-Lite for free on idapt.app to see which performs better for your specific needs.

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