Gemini 3.1 Flash Lite vs GPT-5.5 Pro
google/gemini-3.1-flash-lite · openai/gpt-5.5-pro
As of October 31, 2026, Gemini 3.1 Flash Lite is the cheaper API on UberLLM: $0.0385 per million input tokens and $0.2310 per million output, versus $24.51 / $147.06 for GPT-5.5 Pro, about 100% less when output is 3 tokens for every input token. These are the median prices buyers paid over the last 24 hours. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose Gemini 3.1 Flash Lite to cut cost; choose GPT-5.5 Pro when its capabilities fit your task better.
Gemini 3.1 Flash Lite vs GPT-5.5 Pro, side by side
| Spec | Gemini 3.1 Flash Lite | GPT-5.5 Pro |
|---|---|---|
| Price · input / 1M | $0.0385 | $24.51 |
| Price · output / 1M | $0.2310 | $147.06 |
| Context length | 1,048,576 | 1,000,000 |
| Max output tokens | 65,536 | 128,000 |
| Input modalities | text, image | text, image |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | Yes |
| Reasoning | — | Yes |
| % off list | 85% off | 18% off |
Median prices buyers paid on UberLLM over the last 24 hours. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated October 31, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Gemini 3.1 Flash Lite vs GPT-5.5 Pro — FAQ
Is Gemini 3.1 Flash Lite or GPT-5.5 Pro cheaper?
Gemini 3.1 Flash Lite is cheaper on a blended token mix, by about 100%. A request costs what its provider charged, UberLLM adds no fee, and every request is listed with its cost in Activity.
What's the price difference between Gemini 3.1 Flash Lite and GPT-5.5 Pro?
Gemini 3.1 Flash Lite: $0.0385 in / $0.2310 out per 1M tokens. GPT-5.5 Pro: $24.51 in / $147.06 out per 1M tokens. That's roughly a 100% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Gemini 3.1 Flash Lite and GPT-5.5 Pro with one API?
Yes. Both are served through a single OpenAI-compatible endpoint — set the base URL to https://api.uberllm.dev/v1 and your UberLLM key, then switch between them by changing the model id. Anthropic SDKs work via https://api.uberllm.dev/v1/messages.