Claude Opus 5

Claude Opus 5 is a large language model from Anthropic. It costs $5.00 per million input tokens and $25.00 per million output tokens. Its context window is 1M tokens.

ReasoningTool callingStructured outputPrompt cachingBatch tierimage inputfile input

Input / 1M tokens: $5.00
Output / 1M tokens: $25.00
Cached input / 1M: $0.500
Context window: 1M

This model also charges $0.01 per search request

That is $10.00 per 1,000 requests, billed on top of the token prices above. On a typical 1,000-in / 500-out exchange the tokens cost $0.018, so the search fee is 57% on top. Per-token rankings elsewhere ignore this entirely.

Who serves it cheapest

5 hosts serve Claude Opus 5. Same weights, same API - the price difference is pure margin and routing.

Providers serving Claude Opus 5, cheapest first
Provider	Input / 1M	Output / 1M	Context	Throughput	Uptime 24h
AzureCheapest	$5.00	$25.00	1M	-	99.9%
Claude Platform on AWS	$5.00	$25.00	1M	-	100.0%
Google	$5.00	$25.00	1M	-	99.9%
Amazon Bedrock	$5.00	$25.00	1M	-	99.9%
Anthropic	$5.00	$25.00	1M	-	100.0%

The spread between Azure and Anthropic is about the same for identical weights. Quantization and context limits differ, so check both columns before switching.

Benchmarks

Independent scores published alongside the catalogue.

Intelligence index: 50.7
Coding index: 78.0
Agentic index: 56.2

About Claude Opus 5

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...

Specifications

Claude Opus 5 specifications
Model ID	`anthropic/claude-opus-5`
Provider	Anthropic
Context window	1M tokens
Max output	128K tokens
Input modalities	text, image, file
Output modalities	text
Knowledge cutoff	-
Open weights	No
Released	July 24, 2026

Cheaper alternatives

Models that cost less than Claude Opus 5 while keeping at least half its context window and every input modality it supports.

Claude Sonnet 4.6

$3.00 in · $15.00 out

1.7× cheaper

Claude Sonnet 4.5

$3.00 in · $15.00 out

1.7× cheaper

Claude Sonnet 4

$3.00 in · $15.00 out

1.7× cheaper

GPT-5.4

$2.50 in · $15.00 out

1.8× cheaper

GPT-5.6 Terra Pro

$2.00 in · $12.00 out

2.2× cheaper

Frequently asked

How much does Claude Opus 5 cost?

$5.00 per million input tokens and $25.00 per million output tokens. Cached input reads cost $0.500 per million tokens.

What is the context window of Claude Opus 5?

1M tokens, with up to 128K tokens of output per request.

Does Claude Opus 5 have extra fees beyond per-token pricing?

Yes. Claude Opus 5 charges $0.01 per search request - $10.00 per 1,000 requests - on top of $5.00 per million input tokens and $25.00 per million output tokens. On a typical 1,000-input / 500-output exchange the search fee alone is 57% on top.

Which provider serves Claude Opus 5 cheapest?

Azure at $5.00 per million input tokens - about the same cheaper than Anthropic, the most expensive of the 5 hosts serving it.

Confirm against the source: Anthropic official pricing.