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Claude Sonnet 5.5
Available
Description
Claude Sonnet 5.5 is Anthropic's Sonnet-class model for everyday work, coding, and agentic tasks, with adaptive reasoning and a 1M-token context window.
At a Glance
Key pricing and model details available for this model.
Input price
$2.00
per 1M tokens
Output price
$10.00
per 1M tokens
Context window
1M
tokens
Hallucination rate
0%
Token Pricing
Token pricing normalized to per-million-token rates.
Input / 1M tokens
$2.00
Output / 1M tokens
$10.00
Cache Read / 1M tokens
$0.20
Cache Write (5m) / 1M tokens
$2.50
Cache Write (1h) / 1M tokens
$4.00
Token Pricing Details
Rates are shown per 1M tokens for easier comparison.
| Input / 1M tokens | $2.00 |
| Input unit | 1M tokens |
| Output / 1M tokens | $10.00 |
| Output unit | 1M tokens |
| Cache Read / 1M tokens | $0.20 |
| Cache Read unit | 1M tokens |
| Cache Write (5m) / 1M tokens | $2.50 |
| Cache Write (1h) / 1M tokens | $4.00 |
Feature Availability
Capabilities explicitly listed in the current payload.
LLM
Available
Yes
Vision
Available
Yes
Function calling
Available
Yes
Reasoning
Available
Yes
Service tiers
Not listed
No
Supported Parameters
frequency_penalty
logit_bias
max_completion_tokens
presence_penalty
reasoning_effort
response_format
stop
temperature
tool_choice
tools
top_p
Code Samples
Quick start with the Routeway API
import OpenAI from 'openai';
const openai = new OpenAI({
baseURL: "https://api.routeway.ai/v1",
apiKey: "<YOUR_API_KEY>",
});
async function main() {
const completion = await openai.chat.completions.create({
model: "claude-sonnet-5.5",
messages: [
{
role: "user",
content: "Explain quantum computing in simple terms"
}
]
});
console.log(completion.choices[0].message);
}
main();