Claude Opus 5

anthropicanthropic/claude-opus-5

Anthropic's frontier Opus-tier model, released 2026-07-24. Best for coding, agents, and enterprise workflows that already run on the Opus family.

Official model page ↗

Claude Opus 5 is Anthropic's frontier Opus-tier model, released 2026-07-24. TheRouter verified it live on 2026-07-27 across three independent surfaces — AWS Bedrock, the Anthropic direct API, and OpenRouter — with a real /v1/messages completion returned from the direct API.

It slots in as the successor to Claude Opus 4.8 for coding, agentic, and enterprise workloads that already run on the Opus family and want the newest frontier checkpoint without changing pricing tier.

Best for

• Teams already standardized on the Claude Opus family who want the current frontier checkpoint
• Multi-file coding, long-horizon agent loops, and enterprise reasoning workflows

Reach for something else if

• Low-latency, high-volume simple chat — route to Claude Haiku 4.5 instead

Context Length

Max Output

128K

Input Priceper 1M tokens

$5.40/ 1M tokens

Output Priceper 1M tokens

$27.00/ 1M tokens

Modalities

textimage→text

Capabilities

Vision

Pricing Breakdown

Type	Rate
Input	$5.40 / 1M tokens
Output	$27.00 / 1M tokens

Supported Parameters

temperaturemax_tokenstop_ptoolstool_choiceresponse_formatreasoningstop

Specifications

Release date	2026-07-24	verified
Training cutoff	Not publicly disclosed	unknown
License	Commercial via Anthropic API / AWS Bedrock	verified

Benchmarks

Benchmark	Distribution	Score	Source
SWE-bench Verified No official benchmark table published by Anthropic as of the 2026-07-27 verification date.	—	Not publicly disclosed	—

API Usage Examples

Use the global api.therouter.ai endpoint shown below for new integrations; the legacy China accelerated endpoint is retired.

cURL

curl https://api.therouter.ai/v1/chat/completions   -H "Content-Type: application/json"   -H "Authorization: Bearer $THE_ROUTER_API_KEY"   -d '{
    "model": "anthropic/claude-opus-5",
    "messages": [
      {"role": "user", "content": "Summarize the key points from this input."}
    ]
  }'

API guide

Chat completion

cURL

curl https://api.therouter.ai/v1/chat/completions \
  -H "Authorization: Bearer $THEROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"anthropic/claude-opus-5","messages":[{"role":"user","content":"Hello"}]}'

More from anthropic

anthropic/claude-opus-4.8Direct predecessor

Similar models

Cross-provider sibling models

openai/gpt-5.6-sol

Comparable frontier model

Part of

api-routing frontier-models model-comparison

Guides

Frequently asked

How does TheRouter route requests for Claude Opus 5?

AWS Bedrock is the primary route (matching the convention for every other Claude model on TheRouter), with the Anthropic direct API and OpenRouter as verified fallbacks.

re-authored by TheRouter

Fact ledger — every claim on this page traces here

source	URL	retrieved
Release date	—	—	verified
Training cutoff	—	—	unknown
License	—	—	verified
SWE-bench Verified	www.anthropic.com ↗	2026-07-27	unknown