AI Rate CardGLM-5.1 vs GLM-5.3-Flash: API price and specs
GLM-5.3-Flash is 97% cheaper than GLM-5.1 on input price.
GLM-5.3-Flash is 96% cheaper than GLM-5.1 on output price.
GLM-5.3-Flash is 97% cheaper than GLM-5.1 on a 1M-in / 200k-out workload.
GLM-5.3-Flash has a 540% larger context than GLM-5.1.
| Field | GLM-5.1 | GLM-5.3-Flash |
|---|---|---|
| Lowest input, per 1M | $0.82 +2966.9% | $0.0269 |
| Median input, per 1M | $1.38 +820% | $0.15 |
| Lowest output, per 1M | $2.80 +2739.9% | $0.0986 |
| Median output, per 1M | $4.40 +780% | $0.50 |
| Lowest unit price | — | $0.033 / request |
| Cost of 1M in + 200k out | $1.39 +2870.9% | $0.04662 |
| Context | 205K +84.4% | 1.3M |
| Max output | 203K +80.7% | 1M |
| Providers | 41 +36.9% | 65 |
| Regions | APAC, EU, GLOBAL, US | APAC, EU, FI, GLOBAL, US |
| Accepts | text | application/pdf, file, image, image/gif, image/jpeg, image/png, image/webp, pdf, text, video, video/mp4, video/quicktime, video/webm, video/x-matroska |
| Returns | text | text |
| Type | Text models | Text models |
| Free option | yes | yes |
| Cheapest provider | empiriolabs | openrouter |
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
302ai, abacus, aihubmix, aiml, baseten, cometapi, cortecs, deepinfra, edenai, empiriolabs, fastrouter, friendli, huggingface, impossibl, io-net, iteracompute, jiekou, kilo, meganova, melious, moark, novita, ofox, ollama-cloud, opencode, openrouter, orcarouter, requesty, siliconflow, tensorx, togetherai, tokengo, trustedrouter, vercel, wafer.ai, zai, zenmux, zhipuai
Frequently asked questions
Which is cheaper, GLM-5.1 or GLM-5.3-Flash?
GLM-5.3-Flash is 97% cheaper than GLM-5.1 on input price. GLM-5.3-Flash is 96% cheaper than GLM-5.1 on output price. GLM-5.3-Flash is 97% cheaper than GLM-5.1 on a 1M-in / 200k-out workload.
Which has the larger context, GLM-5.1 or GLM-5.3-Flash?
GLM-5.1: 205K tokens; GLM-5.3-Flash: 1.3M tokens.
Where can I use both GLM-5.1 and GLM-5.3-Flash?
302ai, abacus, aihubmix, aiml, baseten, cometapi, cortecs, deepinfra, edenai, empiriolabs, fastrouter, friendli, huggingface, impossibl, io-net, iteracompute, jiekou, kilo, meganova, melious, moark, novita, ofox, ollama-cloud, opencode, openrouter, orcarouter, requesty, siliconflow, tensorx, togetherai, tokengo, trustedrouter, vercel, wafer.ai, zai, zenmux, zhipuai