GPT-5.3 Codex vs Grok 4.7
openai/gpt-5.3-codex · x-ai/grok-4.7
As of November 2, 2026, Grok 4.7 is the cheaper API on UberLLM: $0.0507 per million input tokens and $0.1521 per million output, versus $0.1747 / $1.40 for GPT-5.3 Codex, about 88% 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 Grok 4.7 to cut cost; choose GPT-5.3 Codex when its capabilities fit your task better.
GPT-5.3 Codex vs Grok 4.7, side by side
| Spec | GPT-5.3 Codex | Grok 4.7 |
|---|---|---|
| Price · input / 1M | $0.1747 | $0.0507 |
| Price · output / 1M | $1.40 | $0.1521 |
| Context length | 400,000 | 500,000 |
| Max output tokens | 128,000 | 450,000 |
| 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 | 90% off | 97.5% off |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 2, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
GPT-5.3 Codex vs Grok 4.7 — FAQ
Is GPT-5.3 Codex or Grok 4.7 cheaper?
Grok 4.7 is cheaper on a blended token mix, by about 88%. 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-5.3 Codex and Grok 4.7?
GPT-5.3 Codex: $0.1747 in / $1.40 out per 1M tokens. Grok 4.7: $0.0507 in / $0.1521 out per 1M tokens. That's roughly a 88% blended difference. Prices are live; UberLLM adds no fee.
Can I use both GPT-5.3 Codex and Grok 4.7 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.