Claude Opus 4.8 via the Tokenator API

What the model is for

Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token context window.

Specification

Full nameClaude Opus 4.8
API IDclaude-opus-4-8
Model vendorAnthropic
TypeText model (chat / completions)
Context window1M tokens
Max output128K tokens
Image inputyes
Tokenator usage multiplier1.8×
Input modalitiestext, image, file
Aliasescursor-claude-opus-4-8 claude-opus-4-8[1m]
Supported API formats/v1/chat/completions /v1/responses /v1/messages
Upstream providers2
Current statusavailable
Data updated2026-08-04

Benchmarks

Intelligence index55.7
Coding index74.3
Agentic index47.2

Artificial Analysis data loaded into the catalog for this model.

Upstream providers

ProviderMultiplier
Anthropic Partner #21.8×
AiPartners Ltd1.8×

A request goes to the first available provider by priority; if it fails, Tokenator switches to the next one.

Example request

curl
curl https://api.tokenator.top/v1/chat/completions \
  -H "Authorization: Bearer sk-your-tokenator-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-4-8",
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Compatible tools

The model can be used in any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code, OpenClaw.

FAQ about Claude Opus 4.8

What is the API ID of Claude Opus 4.8?

claude-opus-4-8 — put this into the model field of your request.

What context window does Claude Opus 4.8 have?

1M tokens; max output is 128K tokens.

How many tokens will a request cost?

(input + output) × 1.8×. See the documentation for details.

Which tools support this model?

Any tool that accepts a custom base URL: Claude Code, Codex CLI, OpenCode, Cursor, Cline, Kilo Code. Setup guides are in the integrations section.