GPT-4o vs GLM-5.2
openai/gpt-4o · z-ai/glm-5.2
As of October 25, 2026, GLM-5.2 is the cheaper API on UberLLM: $0.0004 per million input tokens and $0.0502 per million output, versus $0.2500 / $1.00 for GPT-4o — about 95% less on a blended 3:1 token mix. Both are reached through one OpenAI-compatible key and routed to the cheapest healthy seller, with no UberLLM fee added, so the price you see is the price you pay. Choose GLM-5.2 to cut cost; choose GPT-4o when its capabilities fit your task better.
GPT-4o vs GLM-5.2, side by side
| Spec | GPT-4o | GLM-5.2 |
|---|---|---|
| Price · input / 1M | $0.2500 | $0.0004 |
| Price · output / 1M | $1.00 | $0.0502 |
| Context length | 128,000 | 1,048,576 |
| Max output tokens | 16,384 | 32,768 |
| Input modalities | text | text |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Reasoning | — | Yes |
| Cheapest seller | UberLLM | 716 |
| % off list | 90% off | 99% off |
Live prices via UberLLM, routed to the cheapest healthy seller. The price shown has no UberLLM fee added. Updated October 25, 2026.
GPT-4o vs GLM-5.2 — FAQ
Is GPT-4o or GLM-5.2 cheaper?
GLM-5.2 is cheaper on a blended token mix, by about 95%. UberLLM routes every request to the cheapest healthy seller and bills the price shown, with no fee added.
What's the price difference between GPT-4o and GLM-5.2?
GPT-4o: $0.2500 in / $1.00 out per 1M tokens. GLM-5.2: $0.0004 in / $0.0502 out per 1M tokens. That's roughly a 95% blended difference. Prices are live; UberLLM adds no fee.
Can I use both GPT-4o and GLM-5.2 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.