Gemini 3.5 Flash vs GPT-5.6 Terra
google/gemini-3.5-flash · openai/gpt-5.6-terra
As of November 5, 2026, GPT-5.6 Terra is the cheaper API on UberLLM: $0.0128 per million input tokens and $0.0767 per million output, versus $0.0150 / $0.0900 for Gemini 3.5 Flash, about 15% less when output is 3 tokens for every input token. These are the best prices on the market right now. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose GPT-5.6 Terra to cut cost; choose Gemini 3.5 Flash when its capabilities fit your task better.
Gemini 3.5 Flash vs GPT-5.6 Terra, side by side
| Spec | Gemini 3.5 Flash | GPT-5.6 Terra |
|---|---|---|
| Price · input / 1M | $0.0150 | $0.0128 |
| Price · output / 1M | $0.0900 | $0.0767 |
| Context length | 1,000,000 | 1,050,000 |
| Max output tokens | 65,536 | 128,000 |
| Input modalities | text, image | text, image, file |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | Yes |
| Reasoning | — | Yes |
| % off list | 99% off | 99.4% off |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 5, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Gemini 3.5 Flash vs GPT-5.6 Terra — FAQ
Is Gemini 3.5 Flash or GPT-5.6 Terra cheaper?
GPT-5.6 Terra is cheaper on a blended token mix, by about 15%. 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 3.5 Flash and GPT-5.6 Terra?
Gemini 3.5 Flash: $0.0150 in / $0.0900 out per 1M tokens. GPT-5.6 Terra: $0.0128 in / $0.0767 out per 1M tokens. That's roughly a 15% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Gemini 3.5 Flash and GPT-5.6 Terra 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.