The Claude Opus 4.7 API is our flagship coding model — it ships large refactors that pass review on the first try. The 5% RouterBase discount is pure margin.
The Claude Opus 4.7 API is Anthropic's flagship-tier model for advanced coding, agentic workflows, and complex reasoning — a 200K-token context window, extended thinking, vision, tool use, and prompt caching. The Claude Opus 4.7 API is OpenAI-compatible: point any existing SDK at RouterBase and swap the model name to claude-opus-4-7. Input at $4.75 / 1M tokens, output at $23.75 / 1M tokens, cache reads at $0.475 / 1M tokens — 5% below the standard rate, all through one REST endpoint.
Input
Claude Opus 4.7
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Claude Opus 4.7 API: Chat
Use the Claude Opus 4.7 API to run Anthropic's flagship-tier model for advanced coding, agents, and reasoning — a 200K-token context, extended thinking, and prompt caching.
The Claude Opus 4.7 API is Anthropic's flagship-tier model for advanced coding, agentic workflows, and complex reasoning — a 200K-token context window, extended thinking, vision, tool use, and prompt caching. Routed through RouterBase, the Claude Opus 4.7 API is fully OpenAI-compatible: point any existing SDK at RouterBase's base URL, swap the model name to claude-opus-4-7, and your first call goes through immediately.
Pricing is $4.75 / 1M input tokens, $23.75 / 1M output tokens, and $0.475 / 1M cached-input reads — 5% below the standard rate. One RouterBase key — no Anthropic account required.
Six reasons teams ship on the Claude Opus 4.7 API
From flagship-grade reasoning to 5%-off pricing — what makes the Claude Opus 4.7 API stand out.
Flagship-grade coding
The Claude Opus 4.7 API leads on the hardest real-world coding — large refactors, multi-file features, and gnarly bug hunts that smaller models stall on.
Deep agentic workflows
Long-horizon planning, tool use, and state tracking make the Claude Opus 4.7 API a flagship agent backbone — it sustains complex, many-step tasks without drifting.
200K-token context
Accepts up to 200,000 tokens per request — long documents, multi-file codebases, or full conversation history fit in a single Claude Opus 4.7 API call without chunking.
Extended thinking
Enable extended thinking to let the Claude Opus 4.7 API reason step-by-step on the hardest problems, or keep it off for the fastest responses — you control the depth per request.
Prompt caching
Cache long system prompts and shared context; the Claude Opus 4.7 API bills cached reads at $0.475 / 1M, cutting cost up to 90% on repeated prefixes.
OpenAI-compatible endpoint
The Claude Opus 4.7 API speaks the OpenAI chat-completions wire format. Point any OpenAI SDK at RouterBase — no Anthropic SDK or separate credentials needed.
Quickstart
Get started with the Claude Opus 4.7 API in 3 steps
From sign-up to your first response in under 5 minutes.
Create a RouterBase API key
Sign up and generate an API key — one key reaches the Claude Opus 4.7 API and every other model in the catalog.
Send your first message
Point any OpenAI-compatible SDK at routerbase.com/v1 and set the model to claude-opus-4-7. The response follows the standard chat-completions schema — streaming and tool use supported.
Inspect usage
Every response includes a detailed token breakdown — input, output, and cache-read tokens — so cost and cache-hit rate are visible on every call.
Pay only for what you use
RouterBase passes through partner-tier pricing. Compared against the model's official published API rate.
What teams build with the Claude Opus 4.7 API
Real production loads running on the Claude Opus 4.7 API and the RouterBase model catalog.
We run our hardest agent jobs on the Claude Opus 4.7 API — it sustains long, many-step plans across dozens of tool calls without drifting.
Prompt caching on the Claude Opus 4.7 API dropped our agent bill by more than half — the long system prompt is basically free now.
Extended thinking on the Claude Opus 4.7 API lets us dial reasoning depth per task. RouterBase makes it 5% cheaper and routes around outages automatically.
200K of context means I can drop a whole repo in. The Claude Opus 4.7 API refactors across files without losing the thread.
RouterBase puts the Claude Opus 4.7 API and 200+ other models behind one key. Our team stopped filing requests for new provider accounts.
We A/B the Claude Opus 4.7 API against Sonnet per request — same SDK, one model field. Hard jobs go to Opus and easy ones stay cheap.
We routed our toughest coding tasks to the Claude Opus 4.7 API over a weekend. The only PR comment was 'wait, that's all?'.
At $4.75 / 1M input minus 5%, the Claude Opus 4.7 API gave us frontier-grade reasoning at a price we could ship. The ROI math was instant.
Frequently Asked Questions
Common questions about the Claude Opus 4.7 API.
It is RouterBase's pass-through to Anthropic's Claude Opus 4.7 — Anthropic's flagship-tier model for advanced coding, agents, and reasoning, with a 200K-token context, extended thinking, vision, tool use, and prompt caching, served via an OpenAI-compatible REST interface.