Which is cheaper, Claude Opus 4.5 (latest) or Claude Opus 5?

Claude Opus 4.5 (latest), at $34.34 per million tokens against $40 for Claude Opus 5, three parts input to one part output, read on 16 Sept 2026.

Where is each one cheapest?

Claude Opus 4.5 (latest): $34.34 at Poe. Claude Opus 5: nobody goes below the maker's own price with a reason we can point at, so $40 is the number to beat.

Can I buy both from one provider?

Yes. 31 providers sell both: Jiekou, 302.AI, Abacus, Amazon Bedrock, Anthropic, Atlas Cloud, and more. The cheapest of them for the two together is Jiekou.

Which holds more context?

Claude Opus 5, at 1M tokens against 200k.

Claude Opus 4.5 (latest) vs Claude Opus 5.

model vs model · prices as of 16 Sept 2026

Claude Opus 4.5 (latest) and Claude Opus 5 split the 5 rounds this table counts: the two list price rows, the cheapest price we can explain, the standard price and context. The weighting you pick decides the rest.

Anthropic

Claude Opus 4.5 (latest)

$34.34/M tokens

cheapest we can explain, at Poe · $3.86 per 1,000 pages

200k context · tool calling · reads images

Poe ↗

Anthropic

Claude Opus 5

$40/M tokens

Anthropic list price, nothing below it is accounted for · $4.50 per 1,000 pages

1M context · tool calling · reads images

List price in (lower wins)

$5/M

List price out (lower wins)

$25/M

Cheapest we can explain (lower wins)

$34.34/M at Poe

none below list

Standard price (lower wins)

$40/M

Cost per 1,000 pages (lower wins)

$3.86

$4.50

Context

200k tokens

1M tokens

Open weights

Tool calling

yes

Structured output

yes

Reads images

yes

Reasoning

yes

Released

24 Nov 2025

24 Jul 2026

Providers selling it

Price we measure against

the maker's own

Trains on your prompts (no is better)

not stated

no provider to check

Providers selling both · 31

Jiekou$38 / $40
302.AI$40 / $40
Abacus$40 / $40
Amazon Bedrock$40 / $40
Anthropic$40 / $40
Atlas Cloud$40 / $40
Azure AI Foundry$40 / $40
Azure Cognitive Services$40 / $40

Claude Opus 4.5 (latest) then Claude Opus 5, per million tokens · showing the 8 cheapest of 31

Go further

open in the compare tool →every price for Claude Opus 4.5 (latest)every price for Claude Opus 5

Add a third or fourth model, or switch the weighting, in the tool.

What moved in the last seven days

Claude Opus 4.5 (latest)Nous Portal$4 / $20 $5 / $2525% dearer · 16 Sept 2026
Claude Opus 5Nous Portal$4 / $20 $5 / $2525% dearer · 16 Sept 2026
Claude Opus 5Requesty$5.50 / $27.50 $5 / $259% cheaper · 11 Sept 2026

Frequently asked

Which is cheaper, Claude Opus 4.5 (latest) or Claude Opus 5?: Claude Opus 4.5 (latest), at $34.34 per million tokens against $40 for Claude Opus 5, three parts input to one part output, read on 16 Sept 2026.
Where is each one cheapest?: Claude Opus 4.5 (latest): $34.34 at Poe. Claude Opus 5: nobody goes below the maker's own price with a reason we can point at, so $40 is the number to beat.
Can I buy both from one provider?: Yes. 31 providers sell both: Jiekou, 302.AI, Abacus, Amazon Bedrock, Anthropic, Atlas Cloud, and more. The cheapest of them for the two together is Jiekou.
Which holds more context?: Claude Opus 5, at 1M tokens against 200k.

Prices exclude tax and are per million tokens, read 16 Sept 2026 from each provider's own catalog. The standard price blends three parts input to one part output; a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.