AI Rate CardGLM-4.5-Air vs GLM-5.1: API price and specs
GLM-4.5-Air is 98% cheaper than GLM-5.1 on input price.
GLM-4.5-Air is 97% cheaper than GLM-5.1 on output price.
GLM-4.5-Air is 98% cheaper than GLM-5.1 on a 1M-in / 200k-out workload.
GLM-5.1 has a 56.2% larger context than GLM-4.5-Air.
| Field | GLM-4.5-Air | GLM-5.1 |
|---|---|---|
| Lowest input, per 1M | $0.014 | $0.82 +5792.9% |
| Median input, per 1M | $0.15 | $1.38 +830.3% |
| Lowest output, per 1M | $0.084 | $2.80 +3233.3% |
| Median output, per 1M | $0.92 | $4.40 +380% |
| Lowest unit price | — | — |
| Cost of 1M in + 200k out | $0.0308 | $1.39 +4396.8% |
| Context | 131K +36% | 205K |
| Max output | 131K +35.4% | 203K |
| Providers | 17 +58.5% | 41 |
| Regions | APAC, GLOBAL | APAC, EU, GLOBAL, US |
| Accepts | text | text |
| Returns | text | text |
| Type | Text models | Text models |
| Free option | no | yes |
| Cheapest provider | aihubmix | empiriolabs |
Your own workload: how many tokens the model gets (input) and gives back (output) - for example, in a month. The "Cost" row of the table above is recalculated for these numbers, for each model.
Computed from current offers each time the page opens; the best value of a row is bold, the percent is how far behind the best.
Providers selling both
aihubmix, aiml, deepinfra, edenai, huggingface, impossibl, io-net, kilo, novita, openrouter, orcarouter, requesty, siliconflow, trustedrouter, vercel, zai, zenmux
Frequently asked questions
Which is cheaper, GLM-4.5-Air or GLM-5.1?
GLM-4.5-Air is 98% cheaper than GLM-5.1 on input price. GLM-4.5-Air is 97% cheaper than GLM-5.1 on output price. GLM-4.5-Air is 98% cheaper than GLM-5.1 on a 1M-in / 200k-out workload.
Which has the larger context, GLM-4.5-Air or GLM-5.1?
GLM-4.5-Air: 131K tokens; GLM-5.1: 205K tokens.
Where can I use both GLM-4.5-Air and GLM-5.1?
aihubmix, aiml, deepinfra, edenai, huggingface, impossibl, io-net, kilo, novita, openrouter, orcarouter, requesty, siliconflow, trustedrouter, vercel, zai, zenmux