Models / Anthropic/ Claude Opus 5

Claude Opus 5

Anthropic · released Jul 24, 2026

Input: text, images and documents. Output: text.InputOutput
Type
Proprietary
Input
$5.00
Output
$25.00
Cached
$0.50

List price · per 1M tokens · Anthropic at 1M context · source ↗

Our take

Written Aug 2, 2026

Anthropic's largest Claude model is built for demanding reasoning and coding tasks. It can handle up to one million tokens in a single request and is available across major cloud platforms. Choose it when output quality matters more than price.

Who should pick it

Pick this for your hardest reasoning, coding and agentic workloads where output quality justifies the premium price. Use it for long-document work that actually uses the one-million-token limit. Skip it if cost matters more than quality, or if you need to self-host.

The case for it

  • One-million-token limit: fits large codebases or hundreds of pages per request.
  • Same first-party pricing across five major cloud providers.
  • Accepts text, image and file inputs.

The case against it

  • Output pricing is roughly ten times that of a large downloadable model such as GLM 5.2.
  • Not downloadable, so API access only; no self-hosting path.
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How good is it?

IntelligencePuzzles, maths, exam questions

4.5 of 5

Arena Text (overall)4th of 143 · 1491.8via High

Arena Hard Prompts 3rd of 143 via HighArena Maths 1st of 139 via MaxLiveBench Reasoning 2nd of 35 via Max effortLiveBench Mathematics 4th of 35 via Max effortLiveBench Data Analysis 13th of 35 via Max effort

Also on this board: 1490.4 via Max (Aug 2, 2026). Read the pair, not the higher one.

CodingWriting and fixing code on its own

4.5 of 5

Arena Coding4th of 143 · 1532via High

Arena Code (WebDev) 1st of 74 via MaxLiveBench Coding 8th of 35 via Max effort

Also on this board: 1523 via Max (Aug 2, 2026). Read the pair, not the higher one.

AgenticPlanning, calling tools, staying on task

5 of 5

Arena Agent (IPS)2nd of 36 · 0.119via Max

LiveBench Agentic Coding 1st of 35 via Max effort

Also on this board: 0.117 via High (Jul 28, 2026). Read the pair, not the higher one.

WritingWe do not rate this

Scored, not ratedThe placings are on the right.

Two boards come close and neither tests writing: Arena Creative Writing asks people which of two replies they prefer, and LiveBench Language tests whether a model understood a passage. So we show where Claude Opus 5 placed and give it no mark out of five.

Arena Creative Writing 5th of 143 · 1477.4 via MaxLiveBench Language 2nd of 35 · 88.7 via Max effort
Also scored, on boards we give no mark for
Arena Instruction Following 3rd of 143 via HighLiveBench 4th of 35 via Max effortLiveBench Instruction Following 21st of 35 via Max effort

These tests check whether a model follows instructions — a precondition for all the work above, but not a measure of how well that work is done, which is why they get no rating.

Every published score for this model16 scoresEvery figure we hold, from 16 boards, with who ran it and a link to the source — including the boards no rating above is built on.
LiveBenchreasoning
80.1via Max effortindependentsource ↗
65.2via Max effortindependentsource ↗
81.5via Max effortindependentsource ↗
74.6via Max effortindependentsource ↗
63.8via Max effortindependentsource ↗
88.7via Max effortindependentsource ↗
95.7via Max effortindependentsource ↗
91.2via Max effortindependentsource ↗
0.119via Maxindependentsource ↗
1532via Highindependentsource ↗
1477.4via Maxindependentsource ↗
1519.7via Highindependentsource ↗
1497.9via Highindependentsource ↗
1552.6via Maxindependentsource ↗
1491.8via Highindependentsource ↗
1704.7via Maxindependentsource ↗
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Or rent it from someone else

Cheapest published offer

Why this differs from the header. The strip above quotes Anthropic's own list price. This is the cheapest live offer at the widest standard context we hold, whoever is serving it — a reseller undercutting a lab is ordinary commerce, not an error.

per 1M tokens
$5.00 in / $25.00 out
Context served
1M
Throughput
Not measured
Current provider offers with price, context and prompt-privacy answers
ProviderIn / out per 1M tokensContextThroughputTrains on promptsLogs promptsZero retention
OpenRouter$5.00 / $25.001Mnot measuredUnknownUnknownUnknown
DeepInfra$5.00 / $25.001Mnot measuredUnknownUnknownUnknown
Microsoft Azure AIglobal$5.00 / $25.001M48 tok/sNoNoUnknown
Microsoft Azure AIus-east-2$5.00 / $25.001M55 tok/sNoNoUnknown
Google Vertex AIglobal$5.00 / $25.001M64 tok/sNoNoConfirmed
Claude Platform on AWS$5.00 / $25.001M20 tok/sNoYes30 daysUnknown
Anthropic$5.00 / $25.001M128K out59 tok/sNoYes30 daysUnknown
Amazon Bedrock$5.00 / $25.001M57 tok/sNoNoConfirmed
Amazon Bedrockclaude-on-aws$5.00 / $25.001M56 tok/sNoNoUnknown
Google Vertex AIeurope$5.50 / $27.501M54 tok/sNoNoConfirmed

Across the 10 listings we hold: 8 say they do not train on prompts, 0 say they do and 2 do not say. 3 appear in the zero-retention registry we check; the rest are unknown to us rather than confirmed either way.

What each host's API supports

From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.

Supported
Not supported
Not published
host gave no parameter list
API features per host
ProviderTool callingJSON outputStrict schema
OpenRouter
DeepInfra
Microsoft Azure AIglobal
Microsoft Azure AIus-east-2
Google Vertex AIglobal
Claude Platform on AWS
Anthropic
Amazon Bedrock
Amazon Bedrockclaude-on-aws
Google Vertex AIeurope

Tool calling: 9 of 10 listings say yes, 1 publishes no parameter list. JSON output: 9 of 10 listings say yes, 1 publishes no parameter list. Strict schema: 7 of 10 listings say yes, 2 say no, 1 publishes no parameter list.

02

Models people weigh against Claude Opus 5

03

When we formed this view

Dates behind this page

Aug 2, 2026BenchmarkScored 1532 via High on Arena Codingleaderboard
Aug 2, 2026BenchmarkScored 1477.4 via Max on Arena Creative Writingleaderboard
Aug 2, 2026BenchmarkScored 1519.7 via High on Arena Hard Promptsleaderboard
Aug 2, 2026BenchmarkScored 1497.9 via High on Arena Instruction Followingleaderboard
Aug 2, 2026BenchmarkScored 1552.6 via Max on Arena Mathsleaderboard
Aug 2, 2026BenchmarkScored 1491.8 via High on Arena Text (overall)leaderboard
Aug 2, 2026BenchmarkScored 1704.7 via Max on Arena Code (WebDev)leaderboard
Jul 28, 2026BenchmarkScored 0.119 via Max on Arena Agent (IPS)leaderboard
Jul 26, 2026ListedListed on LLMapfirst indexed by our pipeline
Jul 24, 2026ReleaseClaude Opus 5 listedNew model detected on OpenRouter: anthropic/claude-opus-5

Prices last checked 9d ago

What we do not know about this model yet

  • 1 of 10 listings publish no parameter list, so what their API accepts is unknown to us.
  • Nothing we hold says whether an endpoint streams, so we do not show it either way.
  • 2 of 10 listings do not say whether they train on prompts.
04

Licence and identifiers

What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.

Licence

Commercial API terms. We hold no licence record for this model, so there is nothing to summarise here.

Identifiers

Modality record
text+image+file->text
Catalogue slug
anthropic-claude-opus-5

Machine-readable model card (omc.json) →

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