Kimi K3.1 Pro vs GLM-5.3-Flash: API price and specs

GLM-5.3-Flash is 97% cheaper than Kimi K3.1 Pro on input price.

GLM-5.3-Flash is 97% cheaper than Kimi K3.1 Pro on output price.

GLM-5.3-Flash is 97% cheaper than Kimi K3.1 Pro on a 1M-in / 200k-out workload.

GLM-5.3-Flash has a 25% larger context than Kimi K3.1 Pro.

Field	Kimi K3.1 Pro	GLM-5.3-Flash
Lowest input, per 1M	$0.77 +2769.6%	$0.0269
Median input, per 1M	$2.00 +1233.3%	$0.15
Lowest output, per 1M	$3.23 +3176%	$0.0986
Median output, per 1M	$10.00 +1900%	$0.50
Lowest unit price	—	$0.033 / request
Cost of 1M in + 200k out	$1.42 +2941.5%	$0.04662
Context	1M +20%	1.3M
Max output	1M	1M
Providers	23 +64.6%	65
Regions	APAC	APAC, EU, FI, GLOBAL, US
Accepts	file, image, text, video	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	no	yes
Cheapest provider	kenari	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, cometapi, edenai, fastrouter, impossibl, jiekou, kenari, kilo, meganova, moark, nearai, novita, ofox, openrouter, poe, requesty, trustedrouter, vercel, volcengine, zenmux

Frequently asked questions

Which is cheaper, Kimi K3.1 Pro or GLM-5.3-Flash?

GLM-5.3-Flash is 97% cheaper than Kimi K3.1 Pro on input price. GLM-5.3-Flash is 97% cheaper than Kimi K3.1 Pro on output price. GLM-5.3-Flash is 97% cheaper than Kimi K3.1 Pro on a 1M-in / 200k-out workload.

Which has the larger context, Kimi K3.1 Pro or GLM-5.3-Flash?

Kimi K3.1 Pro: 1M tokens; GLM-5.3-Flash: 1.3M tokens.

Where can I use both Kimi K3.1 Pro and GLM-5.3-Flash?