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Use Claude Opus 4.7 with native Anthropic API access

Crazyrouter prioritizes native Claude-series access for Messages API, streaming, tool workflows, and Claude-compatible clients. OpenAI-compatible routing is available when you need migration convenience.

Use this model via API

This model is available through the paid API. Create an account, add funds and create an API key. The $2 Playground credit is for supported text models only, not API calls.

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Anthropic nativeReasoningCodingVision200K context
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Anthropic
claude-opus-4-7
−35%
below reference price
Input / 1M tokens$5.00$3.25
Output / 1M tokens$25$16
Cached input / 1M tokens$0.500$0.325
Model ID
claude-opus-4-7
Provider
Anthropic
Endpoint
/v1/chat/completions
Task
chat
Context window
200K tokens
Input modalities
Text, image
Output modalities
Text
Release date
2026-04-16

What is Claude Opus 4.7?

Claude Opus 4.7 is positioned for demanding reasoning, complex coding, long document analysis, and high-stakes agent workflows. For Claude-series models, Crazyrouter prioritizes native Anthropic protocol support so Claude clients and Messages API workloads can preserve expected behavior.

Native Claude protocol

Use Anthropic Messages-style requests for Claude-series models whenever possible.

Advanced coding and reasoning

Suitable for architecture review, debugging, multi-file reasoning, and planning.

Streaming responses

Use native streaming behavior for responsive apps, agents, and Claude-compatible clients.

Centralized usage control

Route model usage through Crazyrouter for billing visibility and model switching.

Claude Opus 4.7 API quickstart

Use the native Anthropic Messages API first. If your application is already built on OpenAI-compatible chat completions, use the compatibility endpoint as a migration fallback.

cURL
curl https://api.crazyrouter.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $CRAZYROUTER_API_KEY" \
  -d '{
    "model": "claude-opus-4-7",
    "messages": [{"role": "user", "content": "Explain the tradeoffs of this architecture decision."}],
    "stream": true
  }'
Show OpenAI-compatible migration example
cURL
curl https://api.crazyrouter.com/v1/messages \
  -H "Content-Type: application/json" \
  -H "x-api-key: $CRAZYROUTER_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -d '{
    "model": "claude-opus-4-7",
    "max_tokens": 2048,
    "messages": [{"role": "user", "content": "Explain the tradeoffs of this architecture decision."}],
    "stream": true
  }'

claude-opus-4-7: provider price comparison

Input (dark) / output (light), USD per 1M tokens. Listed providers do not identify Crazyrouter upstream routes.

Comparison snapshot from LiteLLM and manually maintained entries; collection date is not independent vendor verification. No cache hits assumed in these estimates. Pricing sources

Reference$5.00 / $25Azure$5.00 / $25Bedrock$5.00 / $25Vertex AI$5.00 / $25Crazyrouter$3.25 / $16

Estimated workload costs

Chatbot · per month
$748
$1,150 reference cost · save $403
100k conversations × 800 input / 300 output tokens
Documents · per 1k documents
$50
$78 reference cost · save $27
8k input / 1.5k output tokens each
Coding · per developer / month
$13
$20 reference cost · save $7.00
2M input / 400k output tokens

Best use cases

Large codebase analysis and refactoring plans
Agent workflows that need careful tool-use reasoning
Technical writing, design docs, and architecture reviews
Long-context document review and synthesis
Complex debugging and production incident analysis
High-quality prompt expansion and evaluation

Works with developer tools

Claude Code

Best fit for native Claude workflows that expect Anthropic-compatible request behavior.

Codex CLI

Use OpenAI-compatible fallback only when the client does not support native Claude endpoints.

Cursor and Cline

Prefer native Claude configuration where available; otherwise use OpenAI-compatible routing.

LangChain and custom agents

Choose native Anthropic chat models for Claude behavior, or OpenAI-compatible wrappers for mixed-model apps.

Claude Opus 4.7 FAQ

Should I use native Anthropic or OpenAI-compatible access?

For Claude-series models, use native Anthropic Messages API first. OpenAI-compatible access is useful for migration or clients that only support chat completions.

What base URL should I use?

Use https://api.crazyrouter.com/v1. Native Claude requests go to /v1/messages; OpenAI-compatible requests go to /v1/chat/completions.

Does it support streaming?

Use stream: true with the native Messages endpoint. Route-level support can vary, so verify in your own environment before production rollout.

Can I use it with coding tools?

Yes, when the tool supports custom OpenAI-compatible endpoints or proxy configuration. Cursor, Cline, Codex-style clients, and agent frameworks are common use cases.

How should I compare it with Sonnet or GPT models?

Use Opus for the hardest reasoning and coding tasks. Use Sonnet, GPT, Gemini, or DeepSeek alternatives when you need lower cost, higher speed, or different tool compatibility.