OpenAI: GPT-6.1 Terra vs GLM 5.3
openai/gpt-6.1-terra · z-ai/glm-5.3
As of November 1, 2026, GLM 5.3 is the cheaper API on UberLLM: $0.0021 per million input tokens and $0.0420 per million output, versus $0.0565 / $0.2825 for OpenAI: GPT-6.1 Terra, about 86% less when output is 3 tokens for every input token. These are the median prices buyers paid over the last 24 hours. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose GLM 5.3 to cut cost; choose OpenAI: GPT-6.1 Terra when context size wins. OpenAI: GPT-6.1 Terra carries the larger context window (1,050,000 vs 1,000,000 tokens), which can matter for long-document work.
OpenAI: GPT-6.1 Terra vs GLM 5.3, side by side
| Spec | OpenAI: GPT-6.1 Terra | GLM 5.3 |
|---|---|---|
| Price · input / 1M | $0.0565 | $0.0021 |
| Price · output / 1M | $0.2825 | $0.0420 |
| Context length | 1,050,000 | 1,000,000 |
| Max output tokens | 128,000 | 131,072 |
| Input modalities | text, image, file | text |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | — |
| Reasoning | Yes | Yes |
| % off list | 94% off | 97% off |
| First token, median (7 days) | — | 3.7 s (411 requests) |
Median prices buyers paid on UberLLM over the last 24 hours. 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?
OpenAI: GPT-6.1 Terra vs GLM 5.3 — FAQ
Is OpenAI: GPT-6.1 Terra or GLM 5.3 cheaper?
GLM 5.3 is cheaper on a blended token mix, by about 86%. 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 OpenAI: GPT-6.1 Terra and GLM 5.3?
OpenAI: GPT-6.1 Terra: $0.0565 in / $0.2825 out per 1M tokens. GLM 5.3: $0.0021 in / $0.0420 out per 1M tokens. That's roughly a 86% blended difference. Prices are live; UberLLM adds no fee.
Can I use both OpenAI: GPT-6.1 Terra 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.