Claude Opus 4.5 (latest) vs Claude Opus 4.6: API price and specs

Claude Opus 4.6 has a 400% larger context than Claude Opus 4.5 (latest).

Field	Claude Opus 4.5 (latest)	Claude Opus 4.6
Lowest input, per 1M	$2.50	$2.50
Median input, per 1M	$5.00	$5.00
Lowest output, per 1M	$12.50	$12.50
Median output, per 1M	$25.00	$25.00
Lowest unit price	—	—
Cost of 1M in + 200k out	$5.00	$5.00
Context	200K +80%	1M
Max output	66K +48.8%	128K
Providers	30 +3.2%	31
Regions	EU, GLOBAL, US	AU, EU, GLOBAL, 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	openrouter	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

abacus, aihubmix, aiml, amazon-bedrock, anthropic, azure, azure-cognitive-services, cometapi, cortecs, digitalocean, edenai, fastrouter, google-vertex, google-vertex-anthropic, helicone, impossibl, jiekou, kilo, meganova, ofox, opencode, openrouter, orcarouter, perplexity-agent, poe, requesty, trustedrouter, vercel, zenmux

Frequently asked questions

Which has the larger context, Claude Opus 4.5 (latest) or Claude Opus 4.6?

Claude Opus 4.5 (latest): 200K tokens; Claude Opus 4.6: 1M tokens.

Where can I use both Claude Opus 4.5 (latest) and Claude Opus 4.6?