GPT 5.4 Nano vs Grok 4.6
openai/gpt-5.4-nano · x-ai/grok-4.6
As of November 5, 2026, GPT 5.4 Nano is the cheaper API on UberLLM: $0.0387 per million input tokens and $0.2419 per million output, versus $0.1359 / $0.4077 for Grok 4.6, about 44% 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 Grok 4.6 when context size wins. Grok 4.6 carries the larger context window (500,000 vs 400,000 tokens), which can matter for long-document work.
GPT 5.4 Nano vs Grok 4.6, side by side
| Spec | GPT 5.4 Nano | Grok 4.6 |
|---|---|---|
| Price · input / 1M | $0.0387 | $0.1359 |
| Price · output / 1M | $0.2419 | $0.4077 |
| Context length | 400,000 | 500,000 |
| Max output tokens | 128,000 | 200,000 |
| 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 | 80.7% off | 93.2% 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?
GPT 5.4 Nano vs Grok 4.6 — FAQ
Is GPT 5.4 Nano or Grok 4.6 cheaper?
GPT 5.4 Nano is cheaper on a blended token mix, by about 44%. 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 Grok 4.6?
GPT 5.4 Nano: $0.0387 in / $0.2419 out per 1M tokens. Grok 4.6: $0.1359 in / $0.4077 out per 1M tokens. That's roughly a 44% blended difference. Prices are live; UberLLM adds no fee.
Can I use both GPT 5.4 Nano and Grok 4.6 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.