token.app › Compare › GPT-6 Astra Pro vs Gemini 3.5 Flash Lite
GPT-6 Astra Pro vs Gemini 3.5 Flash Lite
Gemini 3.5 Flash Lite is 24× cheaper per token on a blended 3:1 basis. GPT-6 Astra Pro accepts the larger context window (1.1M).
Head to head
Blended price uses a 3:1 input:output mix
| GPT-6 Astra Pro | Gemini 3.5 Flash Lite | |
|---|---|---|
| Provider | OpenAI | |
| Input $/1M | $10.00 | $0.300 |
| Output $/1M | $50.00 | $2.50 |
| Blended $/1M | $20.00 | $0.850 |
| Context window | 1.1M | 1.0M |
| Max output | 128K | 66K |
| Released | Sep 2026 | Jul 2026 |
| Licence | Proprietary | Proprietary |
Choose GPT-6 Astra Pro if…
- Larger context window (1.1M)
- Newer model (released Sep 2026)
Choose Gemini 3.5 Flash Lite if…
- Costs less per token — $0.850 vs $20.00 blended
FAQ
Which is better, GPT-6 Astra Pro or Gemini 3.5 Flash Lite?
We do not hold independently-run benchmark scores covering both GPT-6 Astra Pro and Gemini 3.5 Flash Lite, so we make no quality claim. Their pricing and specifications are compared on this page.
Is GPT-6 Astra Pro cheaper than Gemini 3.5 Flash Lite?
Gemini 3.5 Flash Lite is cheaper: $0.850 versus $20.00 per million tokens blended at 3:1 input:output. Input alone: $10.00 vs $0.300. Output alone: $50.00 vs $2.50.
What context windows do GPT-6 Astra Pro and Gemini 3.5 Flash Lite have?
GPT-6 Astra Pro: 1,050,000 tokens. Gemini 3.5 Flash Lite: 1,048,576 tokens.
Who makes GPT-6 Astra Pro and Gemini 3.5 Flash Lite?
GPT-6 Astra Pro is made by OpenAI. Gemini 3.5 Flash Lite is made by Google.
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