GPT 5.4 Nano vs GPT-5.6 Terra
openai/gpt-5.4-nano · openai/gpt-5.6-terra
As of November 1, 2026, GPT 5.4 Nano is the cheaper API on UberLLM: $0.0392 per million input tokens and $0.2450 per million output, versus $0.0435 / $0.2611 for GPT-5.6 Terra, about 6% 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 5.4 Nano to cut cost; choose GPT-5.6 Terra when context size wins. GPT-5.6 Terra carries the larger context window (1,050,000 vs 400,000 tokens), which can matter for long-document work.
GPT 5.4 Nano vs GPT-5.6 Terra, side by side
| Spec | GPT 5.4 Nano | GPT-5.6 Terra |
|---|---|---|
| Price · input / 1M | $0.0392 | $0.0435 |
| Price · output / 1M | $0.2450 | $0.2611 |
| Context length | 400,000 | 1,050,000 |
| Max output tokens | 128,000 | 128,000 |
| Input modalities | text, image | text, image, file |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | Yes |
| Reasoning | Yes | Yes |
| % off list | 80.4% off | 97.8% off |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 1, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
GPT 5.4 Nano vs GPT-5.6 Terra — FAQ
Is GPT 5.4 Nano or GPT-5.6 Terra cheaper?
GPT 5.4 Nano is cheaper on a blended token mix, by about 6%. 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 GPT 5.4 Nano and GPT-5.6 Terra?
GPT 5.4 Nano: $0.0392 in / $0.2450 out per 1M tokens. GPT-5.6 Terra: $0.0435 in / $0.2611 out per 1M tokens. That's roughly a 6% blended difference. Prices are live; UberLLM adds no fee.
Can I use both GPT 5.4 Nano 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.