Grok 4.3 vs GLM 5.3
x-ai/grok-4.3 · z-ai/glm-5.3
As of November 7, 2026, GLM 5.3 is the cheaper API on UberLLM: $0.0007 per million input tokens and $0.0132 per million output, versus $0.0124 / $0.0248 for Grok 4.3, about 53% 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 GLM 5.3 to cut cost; choose Grok 4.3 when its capabilities fit your task better.
Grok 4.3 vs GLM 5.3, side by side
| Spec | Grok 4.3 | GLM 5.3 |
|---|---|---|
| Price · input / 1M | $0.0124 | $0.0007 |
| Price · output / 1M | $0.0248 | $0.0132 |
| Context length | 1,000,000 | 1,000,000 |
| Max output tokens | 128,000 | 131,072 |
| Input modalities | text, image | text |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | — |
| Reasoning | Yes | Yes |
| % off list | 99% off | 99.1% off |
| First token, median (7 days) | — | 5.4 s (558 requests) |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 7, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Grok 4.3 vs GLM 5.3 — FAQ
Is Grok 4.3 or GLM 5.3 cheaper?
GLM 5.3 is cheaper on a blended token mix, by about 53%. 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 Grok 4.3 and GLM 5.3?
Grok 4.3: $0.0124 in / $0.0248 out per 1M tokens. GLM 5.3: $0.0007 in / $0.0132 out per 1M tokens. That's roughly a 53% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Grok 4.3 and GLM 5.3 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.