Claude Opus 4.8 vs GPT-5.4 mini: API price and specs

GPT-5.4 mini is 75% cheaper than Claude Opus 4.8 on input price.

GPT-5.4 mini is 76% cheaper than Claude Opus 4.8 on output price.

GPT-5.4 mini is 75% cheaper than Claude Opus 4.8 on a 1M-in / 200k-out workload.

Claude Opus 4.8 has a 162.1% larger context than GPT-5.4 mini.

Field	Claude Opus 4.8	GPT-5.4 mini
Lowest input, per 1M	$1.50 +300%	$0.38
Median input, per 1M	$5.00 +566.7%	$0.75
Lowest output, per 1M	$9.25 +311.1%	$2.25
Median output, per 1M	$25.00 +455.6%	$4.50
Lowest unit price	$0.001 / request	$0.001 / request
Cost of 1M in + 200k out	$3.35 +306.1%	$0.82
Context	1M	400K +61.9%
Max output	128K	128K
Providers	34	27 +20.6%
Regions	APAC, AU, EU, GLOBAL, JP, US	EU, GLOBAL, US
Accepts	application/pdf, file, image, image/gif, image/jpeg, image/png, image/webp, pdf, text	file, image, image/gif, image/jpeg, image/png, image/webp, pdf, text
Returns	text	image, text
Type	Text models	Text models
Free option	no	no
Cheapest provider	xpersona	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, azure, azure-cognitive-services, cometapi, digitalocean, edenai, fastrouter, freemodel, github-copilot, impossibl, jiekou, kilo, nearai, ofox, opencode, openrouter, orcarouter, poe, requesty, trustedrouter, vercel, xpersona, zenmux

Frequently asked questions

Which is cheaper, Claude Opus 4.8 or GPT-5.4 mini?

GPT-5.4 mini is 75% cheaper than Claude Opus 4.8 on input price. GPT-5.4 mini is 76% cheaper than Claude Opus 4.8 on output price. GPT-5.4 mini is 75% cheaper than Claude Opus 4.8 on a 1M-in / 200k-out workload.

Which has the larger context, Claude Opus 4.8 or GPT-5.4 mini?

Claude Opus 4.8: 1M tokens; GPT-5.4 mini: 400K tokens.

Where can I use both Claude Opus 4.8 and GPT-5.4 mini?