Gemini 3.1 Flash Lite vs GPT-6 Astra Pro
Price, context window & benchmark comparison
VS
Compare different models
Verdict: Gemini 3.1 Flash Lite is 35.6× cheaper than GPT-6 Astra Pro on a typical 3:1 input/output mix. GPT-6 Astra Pro has the larger context window (1.1M vs 1M).
| Gemini 3.1 Flash Lite | GPT-6 Astra Pro | |
|---|---|---|
| Input price / 1M | $0.25 | $10.00 |
| Output price / 1M | $1.50 | $50.00 |
| Blended price (3:1) | $0.56 | $20.00 |
| Cached input / 1M | $0.025 | $1.00 |
| Context window | 1M | 1.1M |
| Max output | 66K | 128K |
| Intelligence index | — | — |
| Coding index | — | — |
| Providers | — | 5 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-05-07 | 2026-09-04 |
| Retirement | — | — |
Cost calculator
FAQ
Which is cheaper, Gemini 3.1 Flash Lite or GPT-6 Astra Pro?
Gemini 3.1 Flash Lite is 35.6× cheaper than GPT-6 Astra Pro on a typical 3:1 input/output mix.
Gemini 3.1 Flash Lite vs GPT-6 Astra Pro: which has a bigger context window?
Gemini 3.1 Flash Lite: 1,048,576 tokens. GPT-6 Astra Pro: 1,050,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Gemini 3.1 Flash Lite ≈ $1,250, GPT-6 Astra Pro ≈ $45,000.
More comparisons
Gemini 3.1 Flash Lite vs GLM 5.3 PrimeGemini 3.1 Flash Lite vs Qwen3.8 Max PrimeGemini 3.1 Flash Lite vs Command A+Gemini 3.1 Flash Lite vs GPT-6 Luna ProGemini 3.1 Flash Lite vs GPT-6 LunaGemini 3.1 Flash Lite vs GPT-6 Sol ProGemini 3.1 Flash Lite vs GPT-6 SolGemini 3.1 Flash Lite vs Claude Opus 5.5Gemini 3.1 Flash Lite vs MiMo-V2.6-Pro-UltraSpeedGemini 3.1 Flash Lite vs MiMo-V2.6-FlashGemini 3.1 Flash Lite vs Grok 4.7Gemini 3.1 Flash Lite vs Qwen3.8 Omni FlashGemini 3.1 Flash Lite vs GLM 5.3 FlashXGemini 3.1 Flash Lite vs DeepSeek V4.1 FlashGemini 3.1 Flash Lite vs GPT-6 AstraGemini 3.1 Flash Lite vs Qwen3.8 Max (0902)GPT-6 Astra Pro vs GLM 5.3 PrimeGPT-6 Astra Pro vs Qwen3.8 Max PrimeGPT-6 Astra Pro vs Command A+GPT-6 Astra Pro vs GPT-6 Luna ProGPT-6 Astra Pro vs GPT-6 LunaGPT-6 Astra Pro vs GPT-6 Sol ProGPT-6 Astra Pro vs GPT-6 SolGPT-6 Astra Pro vs Claude Opus 5.5