Who changed AI API prices in September 2026
· covers September 2026
17 host-model prices changed in September 2026: 5 up, 12 down. These are the providers’ own published figures, recorded daily.
Which AI API prices changed?
| Model | Host | Was | Now | Change |
|---|---|---|---|---|
| google/gemma-4-31b-it | siliconflow | $0.130 | $0.750 | +476.9% |
| z-ai/glm-5.3-flash | glm | $0.075 | $0.150 | +100.0% |
| deepseek/deepseek-v4-flash-0731 | reka | $0.220 | $0.021 | -90.5% |
| z-ai/glm-5.3 | reka | $1.400 | $0.370 | -73.6% |
| z-ai/glm-5.3 | deepinfra | $1.200 | $0.562 | -53.1% |
| z-ai/glm-5.2 | reka | $1.100 | $0.600 | -45.5% |
| z-ai/glm-5.3 | novita | $1.400 | $0.783 | -44.1% |
| deepseek/deepseek-v4-pro-0813 | novita | $1.320 | $0.990 | -25.0% |
| deepseek/deepseek-v4-flash-0731 | deepinfra | $0.080 | $0.060 | -25.0% |
| z-ai/glm-5.3 | siliconflow | $1.400 | $1.120 | -20.0% |
| qwen/qwen3.8-2.4t-a95b | together | $2.500 | $2.000 | -20.0% |
| stepfun/step-3.7-flash | deepinfra | $0.200 | $0.160 | -20.0% |
| google/gemma-4-26b-a4b-it | siliconflow | $0.120 | $0.140 | +16.7% |
| z-ai/glm-5.2 | deepinfra | $0.487 | $0.562 | +15.4% |
| z-ai/glm-5.2 | novita | $0.742 | $0.650 | -12.5% |
| z-ai/glm-5.3-flash | novita | $0.075 | $0.084 | +12.0% |
| deepseek/deepseek-v4-flash-0731 | novita | $0.440 | $0.409 | -7.0% |
Where do these numbers come from?
Prices are published by the providers and read from a public catalogue once a day; the change is the difference between the first and last reading in the month. We do not measure prices — we measure latency, which sits next to them on the price-vs-latency page.
Same series: ← August 2026
Other measurements from the same period
- Which AI API SDKs developers installed in September 2026
- AI API outages in September 2026: who went down, and who admitted it
- AI models retired or deprecated in September 2026
This post is a snapshot. The live figures behind it: /price-vs-latency · all posts