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GPT 6 Astra vs Gemini 2.5 Pro (05-06)

At a glance

OpenAI's new flagship for demanding end-to-end work: advanced analysis, software engineering, deep research, scientific work, and document creation.

1.1M ctx$10.00/$50.00 per M

Earlier Gemini 2.5 Pro preview release from May 2025.

751.0M ctx$1.25/$10.00 per M#41/92
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
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Expert-Level—
Math
Math Problems—
Coding
Code Editing—
Reasoning
CodingInsufficient data
AgenticInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Cheaper83%
Capability
CapabilityECI75.3
Reasoning & Knowledge
Graduate Science66.7%Expert-Level17.8%
Math
Math Problems95.9%
Coding
Code Editing76.9%
Specs
1.1M
Context
128K
Max output
Sep 2026
Released
1.0M
Context
66K
Max output
May 2025
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
Input88%$1.25/M tokens
Output80%$10.00/M tokens
Reasoning$10.00/M tokens
Cache read88%$0.13/M tokens
Cache write97%$0.38/M tokens
Image input$1.25/M tokens
Audio input$1.25/M tokens
Web search$0.01/search
Chat with GPT 6 AstraGo to model
Chat with Gemini 2.5 Pro (05-06)Go to model
Frequently Asked Questions: GPT 6 Astra vs Gemini 2.5 Pro (05-06)▼

Which is better, GPT 6 Astra or Gemini 2.5 Pro (05-06)?

▼

Both GPT 6 Astra and Gemini 2.5 Pro (05-06) 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 or Gemini 2.5 Pro (05-06)?

▼

Gemini 2.5 Pro (05-06) has a lower blended cost. GPT 6 Astra: $10.00 input / $50.00 output. Gemini 2.5 Pro (05-06): $1.25 input / $10.00 output.

Which has a larger context window, GPT 6 Astra or Gemini 2.5 Pro (05-06)?

▼

GPT 6 Astra has a larger context window: GPT 6 Astra supports 1.1M tokens vs Gemini 2.5 Pro (05-06) at 1M tokens.

Do both GPT 6 Astra and Gemini 2.5 Pro (05-06) support vision?

▼

Yes, both GPT 6 Astra and Gemini 2.5 Pro (05-06) support vision/image input.

What are the key differences between GPT 6 Astra and Gemini 2.5 Pro (05-06)?

▼

Key differences: Gemini 2.5 Pro (05-06) 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 and Gemini 2.5 Pro (05-06) for free on idapt.app to see which performs better for your specific needs.

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