Claude Fable 5 vs Claude Opus 4.8: API price and specs

Claude Opus 4.8 is 50% cheaper than Claude Fable 5 on input price.

Claude Opus 4.8 is 50% cheaper than Claude Fable 5 on output price.

Claude Opus 4.8 is 50% cheaper than Claude Fable 5 on a 1M-in / 200k-out workload.

Claude Opus 4.8 has a 4.9% larger context than Claude Fable 5.

Field	Claude Fable 5	Claude Opus 4.8
Lowest input, per 1M	$3.00 +100%	$1.50
Median input, per 1M	$10.00 +100%	$5.00
Lowest output, per 1M	$18.50 +100%	$9.25
Median output, per 1M	$50.00 +100%	$25.00
Lowest unit price	$0.001 / request	$0.001 / request
Cost of 1M in + 200k out	$6.70 +100%	$3.35
Context	1M +4.6%	1M
Max output	128K	128K
Providers	34	34
Regions	EU, GLOBAL, US	APAC, AU, EU, GLOBAL, JP, US
Accepts	application/pdf, file, image, image/gif, image/jpeg, image/png, image/webp, pdf, text	application/pdf, file, image, image/gif, image/jpeg, image/png, image/webp, pdf, text
Returns	text	text
Type	Text models	Text models
Free option	no	no
Cheapest provider	xpersona	xpersona

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, amazon-bedrock, anthropic, azure, azure-cognitive-services, cometapi, deepinfra, digitalocean, edenai, fastrouter, freemodel, github-copilot, google-vertex, google-vertex-anthropic, impossibl, jiekou, kenari, kilo, meganova, nearai, ofox, opencode, openrouter, orcarouter, requesty, trustedrouter, vercel, xpersona, zenmux

Frequently asked questions

Which is cheaper, Claude Fable 5 or Claude Opus 4.8?

Claude Opus 4.8 is 50% cheaper than Claude Fable 5 on input price. Claude Opus 4.8 is 50% cheaper than Claude Fable 5 on output price. Claude Opus 4.8 is 50% cheaper than Claude Fable 5 on a 1M-in / 200k-out workload.

Which has the larger context, Claude Fable 5 or Claude Opus 4.8?

Claude Fable 5: 1M tokens; Claude Opus 4.8: 1M tokens.

Where can I use both Claude Fable 5 and Claude Opus 4.8?