Claude Opus 4.7
Claude Opus 4.7 is a language model from Anthropic. It is currently free at 1 provider with up to 1M tokens of context. The model understands images, is suited to coding, supports tool calling.
- Developer
- Anthropic
- Context
- 1M tokens
- Type
- Text
- License
- Proprietary
- Free since
- October 13, 2026
Where to use Claude Opus 4.7 for free
Each row is a separate free endpoint with its own limits.
Quick start
curl https://api.unorouter.com/v1/chat/completions \
-H "Authorization: Bearer $UNOROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "claude-opus-4.7:free",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(
base_url="https://api.unorouter.com/v1",
api_key="YOUR_UNOROUTER_API_KEY",
)
reply = client.chat.completions.create(
model="claude-opus-4.7:free",
messages=[{"role": "user", "content": "Hello!"}],
)
print(reply.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.unorouter.com/v1",
apiKey: process.env.UNOROUTER_API_KEY,
});
const reply = await client.chat.completions.create({
model: "claude-opus-4.7:free",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(reply.choices[0].message.content);Example for UnoRouter. Any OpenAI-compatible client works: Cursor, Cline, OpenCode, Open WebUI.
Benchmarks
Source: Artificial Analysis · Claude Opus 4.7 (Max)
Similar free models
FAQ
Is Claude Opus 4.7 free?
Yes. As of October 13, 2026, Claude Opus 4.7 is free at UnoRouter. Each provider has its own limits — see the table above.
What is the context window of Claude Opus 4.7?
The largest context among free routes is 1,000,000 tokens. Some providers cap it lower.
How do I call Claude Opus 4.7 via API?
Use any OpenAI-compatible client with base URL https://api.unorouter.com/v1, model ID claude-opus-4.7:free, and a UnoRouter key.
How good is Claude Opus 4.7?
Artificial Analysis Intelligence Index: 40.7, GPQA Diamond: 91%. For comparison, the strongest free model in the catalog right now is Claude Opus 5.5.
Is Claude Opus 4.7 open-weight?
No, it is proprietary: access is only through provider APIs.