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claude-opus-4.8 API pricing

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

Model IDanthropic/claude-opus-4.8
ChatStreamingTool callingVision
Get API KeyRun your first request

Call summary

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

claude-opus-4.8 API endpoints

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

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

Production reliability

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

Successful response share

99.61%

Success 2xx

99.61%

Rate limit 429

0.00%

Server 5xx

0.39%

TPS

49.89

tokens/s
Avg. time to first token

9.91 s

Avg. latency

17.85 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 Sep 10, 2026, 10:51 PM UTC

More Claude models on Router One

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

claude-fable-5$8.00 in / $40.00 out per 1M1.05M contextclaude-haiku-4.5$0.30 in / $3.00 out per 1M200K contextclaude-opus-4.6$2.25 in / $11.25 out per 1M1.05M contextclaude-opus-4.6-thinking$2.25 in / $11.25 out per 1M1.05M contextclaude-opus-4.7-thinking$2.25 in / $11.25 out per 1M1.05M contextclaude-opus-5$2.25 in / $11.25 out per 1M1.05M contextclaude-sonnet-4.6$0.90 in / $4.50 out per 1M1.05M contextclaude-sonnet-4.6-thinking$0.90 in / $4.50 out per 1M1.05M contextclaude-sonnet-5$0.90 in / $4.50 out per 1M1.05M context

claude-opus-4.8 compared with other models

Spec and price matchups against peer models.

Claude Opus 4.8vsGPT-5.5Claude Opus 4.8vsClaude Sonnet 5Claude Opus 5vsClaude Opus 4.8

claude-opus-4.8 at a glance

claude-opus-4.8 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). 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-4.8 FAQ

How much does claude-opus-4.8 cost on Router One?

claude-opus-4.8 is billed per token on Router One: $2.25 in / $11.25 out per 1M tokens, pay as you go.

Which endpoints serve claude-opus-4.8?

claude-opus-4.8 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-4.8's context window?

claude-opus-4.8 accepts up to 1.05M tokens of context per request on Router One.

Start using claude-opus-4.8

Create an API key and call claude-opus-4.8 at $2.25 in / $11.25 out per 1M tokens on Router One — pay as you go, with per-request cost and latency visibility.

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