Claude Opus 5
Model id: anthropic/claude-opus-5
- Agentic
- Frontier
- Coding
- Reasoning
- Vision
- Long context
- Tools
- Research
- Legal
- Government
Anthropic’s Claude Opus 5 flagship — near Fable-level intelligence at Opus price for everyday agentic work.
Best for
daily coding agents, hard knowledge work, and complex multi-step tasks at Opus cost.
- Provider
- Anthropic
- Context window
- 1,000,000
- Release date
- 2026-07-24
- Reasoning effort
- lowmediumhighmaxDefault: high
Pricing
Web search
Billed on top of tokens when the model uses web search.
Amounts in Canadian dollars, converted at the Bank of Canada indicative rate (2026-07-31).
Performance
Milliseconds
Last 7 days
- Time to first byte (p95)
- 1,503 ms
- Output speed (p95)
- 90.7 tok/s
- Samples
- 66 over 7 days
Measured on real traffic at Pass egress — not a synthetic benchmark.
Activity
Tokens
Top 5 tools · last 7 days
Tool activity appears only when at least 2 organizations have used this model recently.
Availability
Availability (%)
Last 7 days
- Operational probes
- 99.85% over 7 days
- Samples
- 8,614
Quick start
Call the API with a tonia_ key and the exact model id below.
curl
curl https://pass.tonia.ca:8443/v1/chat/completions \
-H "Authorization: Bearer $TONIA_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-opus-5",
"messages": [{"role":"user","content":"Bonjour"}]
}'Python (OpenAI SDK)
import os
from openai import OpenAI
client = OpenAI(
base_url="https://pass.tonia.ca:8443/v1",
api_key=os.environ["TONIA_API_KEY"],
)
response = client.chat.completions.create(
model="anthropic/claude-opus-5",
messages=[{"role": "user", "content": "Bonjour"}],
)TypeScript (OpenAI SDK)
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://pass.tonia.ca:8443/v1",
apiKey: process.env.TONIA_API_KEY,
});
const response = await client.chat.completions.create({
model: "anthropic/claude-opus-5",
messages: [{ role: "user", content: "Bonjour" }],
});With the Anthropic API (/v1/messages), Claude models are used without the anthropic/ prefix.