Claude Opus 4.8 API
LLMClaude Opus 4.8 remains available with a 1M context window, vision, and structured tool use.
- Input · USD / 1M tokens$1.4 USDOfficial price
$5 USD - Output · USD / 1M tokens$7 USDOfficial price
$25 USD - Savings72%
- Context1M
- Last verified2026-07-22
- View tool pricing and billing rules
What are we making today?
Bring an idea, a question, or a first draft.
01
Where it fits
Claude Opus 4.8 remains available with a 1M context window, vision, and structured tool use.
Use it for existing Opus 4.8 workflows in Claude Code, Cursor, Cline, or Aider.
02
Model capabilities
Vision
Accepts visual input alongside text for multimodal coding and analysis tasks.
Tool use
Can select and call tools in agent workflows that support structured tool use.
03
OpenAI-compatible API
Keep your client and change the base URL, API key, and model ID.
curl https://api.omniakey.com/v1/chat/completions \
-H "Authorization: Bearer $OMNIAKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-opus-4-8",
"messages": [{"role": "user", "content": "Explain this codebase"}],
"stream": true
}'04
Compatible coding tools
More Anthropic models
Frequently asked questions
How much does Claude Opus 4.8 cost on OmniaKey?
OmniaKey charges $1.4 USD per 1M input tokens and $7 USD per 1M output tokens, in USD. Official prices are $5 USD and $25 USD; you save 72%.
What is the context window for Claude Opus 4.8?
The listed context window is 1M. Actual usable limits can also depend on the client and upstream request format.
Which coding tools work with Claude Opus 4.8?
The current catalog lists compatibility with Claude Code, Cursor, Cline, Aider. Use the model ID shown on this page when the client supports model selection.