DeepSeek V4 Flash 0731 Fast vs GLM 4.5 Air
deepseek/deepseek-v4-flash-0731-fast · z-ai/glm-4.5-air
As of November 4, 2026, GLM 4.5 Air is the cheaper API on UberLLM: $0.0001 per million input tokens and $0.0008 per million output, versus $0.2660 / $0.5320 for DeepSeek V4 Flash 0731 Fast, about 100% 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 4.5 Air to cut cost; choose DeepSeek V4 Flash 0731 Fast when context size wins. DeepSeek V4 Flash 0731 Fast carries the larger context window (1,000,000 vs 128,000 tokens), which can matter for long-document work.
DeepSeek V4 Flash 0731 Fast vs GLM 4.5 Air, side by side
| Spec | DeepSeek V4 Flash 0731 Fast | GLM 4.5 Air |
|---|---|---|
| Price · input / 1M | $0.2660 | $0.0001 |
| Price · output / 1M | $0.5320 | $0.0008 |
| Context length | 1,000,000 | 128,000 |
| Max output tokens | 32,768 | 32,768 |
| Input modalities | text | text |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Reasoning | Yes | Yes |
| % off list | 24% off | 99.9% off |
| First token, median (7 days) | 2.5 s (469 requests) | — |
Best prices on UberLLM right now. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 4, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
DeepSeek V4 Flash 0731 Fast vs GLM 4.5 Air — FAQ
Is DeepSeek V4 Flash 0731 Fast or GLM 4.5 Air cheaper?
GLM 4.5 Air is cheaper on a blended token mix, by about 100%. 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 DeepSeek V4 Flash 0731 Fast and GLM 4.5 Air?
DeepSeek V4 Flash 0731 Fast: $0.2660 in / $0.5320 out per 1M tokens. GLM 4.5 Air: $0.0001 in / $0.0008 out per 1M tokens. That's roughly a 100% blended difference. Prices are live; UberLLM adds no fee.
Can I use both DeepSeek V4 Flash 0731 Fast and GLM 4.5 Air 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.