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Long context

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
Cache read $0.375
Output
$37.50$11.25/ 1M tokens
Context Window
1.05M
API Endpoints
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
Chat Completions reference
POST/v1/messagesAnthropic-native · Native for Claude Code
Messages API reference

Production reliability

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

Successful response share

98.88%

Success 2xx

98.88%

Rate limit 429

0.00%

Server 5xx

1.12%

TPS

143.07

tokens/s
Avg. time to first token

26.42 s

Avg. latency

26.36 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 11, 2026, 3:20 PM UTC

More Claude models on Router One

28 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 Haiku 5.5$0.06 in / $0.30 out per 1M1.05M 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 Opus 5.5$2.40 in / $12.00 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 contextClaude Sonnet 5.5$1.20 in / $6.00 out per 1M1.05M context
16 channel versions
Claude Haiku 4.5 · AWS$1.00 in / $5.00 out per 1M200K contextClaude Opus 4.5 · AWS$5.00 in / $25.00 out per 1M200K contextClaude Opus 4.6 · AWS$5.00 in / $25.00 out per 1M1M contextClaude Opus 4.7 · AWS$5.00 in / $25.00 out per 1M1M contextClaude Opus 4.8 · AWS$5.00 in / $25.00 out per 1M1M contextClaude Opus 5 · AWS$5.00 in / $25.00 out per 1M1M contextClaude Sonnet 4.5 · AWS$3.00 in / $15.00 out per 1M200K contextClaude Sonnet 4.6 · AWS$3.00 in / $15.00 out per 1M1M contextClaude Sonnet 5 · AWS$2.00 in / $10.00 out per 1M1M contextClaude Opus 4.6 · Vertex$5.00 in / $25.00 out per 1M1M contextClaude Opus 4.7 · Vertex$5.00 in / $25.00 out per 1M1M contextClaude Opus 4.8 · Vertex$5.00 in / $25.00 out per 1M1M contextClaude Opus 5 · Vertex$5.00 in / $25.00 out per 1M1M contextClaude Sonnet 4.5 · Vertex$3.00 in / $15.00 out per 1M200K contextClaude Sonnet 4.6 · Vertex$3.00 in / $15.00 out per 1M1M contextClaude Sonnet 5 · Vertex$2.00 in / $10.00 out per 1M1M context

Claude Opus 4.8 compared with other models

Spec and price matchups against peer models.

Claude Opus 4.8 vs GPT-5.5Claude Opus 4.8 vs Claude Sonnet 5Claude Opus 5 vs Claude Opus 4.8

Claude Opus 4.8 at a glance

Claude Opus 4.8 (model ID anthropic/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). Router One subscriptions include Claude Opus 4.8 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 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.

Is Claude Opus 4.8 included in Router One subscriptions?

Router One subscriptions include Claude Opus 4.8 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 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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