GLM-5 vs GLM-5.3-Flash: API price and specs

GLM-5.3-Flash is 55% cheaper than GLM-5 on input price.

GLM-5.3-Flash is 55% cheaper than GLM-5 on output price.

GLM-5.3-Flash is 55% cheaper than GLM-5 on a 1M-in / 200k-out workload.

GLM-5.3-Flash has a 25% larger context than GLM-5.

Field	GLM-5	GLM-5.3-Flash
Lowest input, per 1M	$0.06 +123%	$0.0269
Median input, per 1M	$1.00 +566.7%	$0.15
Lowest output, per 1M	$0.22 +123.1%	$0.0986
Median output, per 1M	$3.20 +540%	$0.50
Lowest unit price	—	$0.033 / request
Cost of 1M in + 200k out	$0.10 +123.1%	$0.04662
Context	1M +20%	1.3M
Max output	203K +80.7%	1M
Providers	38 +41.5%	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	aihubmix	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, deepinfra, edenai, fastrouter, huggingface, impossibl, io-net, iteracompute, jiekou, kilo, meganova, melious, moark, novita, ofox, opencode, openrouter, orcarouter, requesty, siliconflow, tensorx, togetherai, tokengo, trustedrouter, vercel, vultr, zai, zenmux, zhipuai

Frequently asked questions

Which is cheaper, GLM-5 or GLM-5.3-Flash?

GLM-5.3-Flash is 55% cheaper than GLM-5 on input price. GLM-5.3-Flash is 55% cheaper than GLM-5 on output price. GLM-5.3-Flash is 55% cheaper than GLM-5 on a 1M-in / 200k-out workload.

Which has the larger context, GLM-5 or GLM-5.3-Flash?

GLM-5: 1M tokens; GLM-5.3-Flash: 1.3M tokens.

Where can I use both GLM-5 and GLM-5.3-Flash?