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Long context

Claude Opus 5 API pricing

Anthropic's Claude series — long context, dependable tool calling, and the native models behind Claude Code.

Model IDanthropic/claude-opus-5
ChatStreamingTool callingVision

Call summary

Input
$7.50$2.25/ 1M tokens
Cache write $4.6875
Cache read $0.375
Output
$37.50$11.25/ 1M tokens
Context Window
1.05M
API Endpoints
2

Claude Opus 5 API endpoints

One API key — call this model through any of the 2 endpoints below.

POST/v1/chat/completionsOpenAI-compatible · Works for every model
POST/v1/messagesAnthropic-native · Native for Claude Code

Production reliability

Privacy-safe aggregates from real Router One model calls, so you can assess stability and response latency before integrating.

Successful response share

99.71%

Success 2xx

99.71%

Rate limit 429

0.00%

Server 5xx

0.29%

TPS

98.65

tokens/s
Avg. time to first token

7.16 s

Avg. latency

18.31 s

Includes production requests ending in 2xx, 429, or 5xx. Average latency uses successful requests; time to first token and TPS require complete observations from successful streams. Public thresholds are 100 requests and 5 independent principals.

Updated Oct 24, 2026, 8:12 PM UTC

More Claude models on Router One

29 other Claude models on the same gateway and API key — each page lists endpoints, posted price, and context window.

16 channel versions

Claude Opus 5 compared with other models

Spec and price matchups against peer models.

Claude Opus 5 at a glance

Claude Opus 5 (model ID anthropic/claude-opus-5) is a Claude-series text model on Router One. Posted rate: $2.25 in / $11.25 out per 1M tokens (was $7.50 in / $37.50 out). Router One subscriptions include Claude Opus 5 in the Premium models allowance: Pro 300, Max 1,000, Ultra 5,000 requests per 30-day cycle. Usage beyond the allowance bills the wallet at posted rates. Within a plan allowance, a request above 256,000 / 512,000 input tokens counts as 2 / 4 requests. Context window: 1.05M tokens. Accepts text, image; returns text. Endpoints: POST /v1/chat/completions (OpenAI-compatible), POST /v1/messages (Anthropic-native, the Claude Code path).

Claude Opus 5 FAQ

How much does Claude Opus 5 cost on Router One?

Claude Opus 5 is billed per token on Router One: $2.25 in / $11.25 out per 1M tokens, pay as you go.

Is Claude Opus 5 included in Router One subscriptions?

Router One subscriptions include Claude Opus 5 in the Premium models allowance: Pro 300, Max 1,000, Ultra 5,000 requests per 30-day cycle. Usage beyond the allowance bills the wallet at posted rates. Within a plan allowance, a request above 256,000 / 512,000 input tokens counts as 2 / 4 requests.

Which endpoints serve Claude Opus 5?

Claude Opus 5 is served on 2 endpoints — POST /v1/chat/completions (OpenAI-compatible), POST /v1/messages (Anthropic-native, the Claude Code path). The same Router One API key works on each.

What is Claude Opus 5's context window?

Claude Opus 5 accepts up to 1.05M tokens of context per request on Router One.

Start using Claude Opus 5

Create an API key and call Claude Opus 5 at $2.25 in / $11.25 out per 1M tokens on Router One — pay as you go, with per-request cost and latency visibility.