Claude Fable 5 vs Grok 4.3: API price and specs

Grok 4.3 is 67% cheaper than Claude Fable 5 on input price.

Grok 4.3 is 89% cheaper than Claude Fable 5 on output price.

Grok 4.3 is 79% cheaper than Claude Fable 5 on a 1M-in / 200k-out workload.

Field	Claude Fable 5	Grok 4.3
Lowest input, per 1M	$3.00 +200%	$1.00
Median input, per 1M	$10.00 +700%	$1.25
Lowest output, per 1M	$18.50 +825%	$2.00
Median output, per 1M	$50.00 +1900%	$2.50
Lowest unit price	$0.001 / request	—
Cost of 1M in + 200k out	$6.70 +378.6%	$1.40
Context	1M	1M
Max output	128K +87.2%	1M
Providers	34	24 +29.4%
Regions	EU, GLOBAL, US	US
Accepts	application/pdf, file, image, image/gif, image/jpeg, image/png, image/webp, pdf, text	application/pdf, file, image, image/jpeg, image/png, pdf, text
Returns	text	text
Type	Text models	Text models
Free option	no	no
Cheapest provider	xpersona	cometapi

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, cometapi, edenai, fastrouter, google-vertex, impossibl, jiekou, kilo, meganova, ofox, openrouter, orcarouter, requesty, standardcompute, trustedrouter, vercel, zenmux

Frequently asked questions

Which is cheaper, Claude Fable 5 or Grok 4.3?

Grok 4.3 is 67% cheaper than Claude Fable 5 on input price. Grok 4.3 is 89% cheaper than Claude Fable 5 on output price. Grok 4.3 is 79% cheaper than Claude Fable 5 on a 1M-in / 200k-out workload.

Which has the larger context, Claude Fable 5 or Grok 4.3?

Claude Fable 5: 1M tokens; Grok 4.3: 1M tokens.

Where can I use both Claude Fable 5 and Grok 4.3?