Last refreshed 2026-07-26. Next refresh: weekly.
Why use Claude Sonnet 4 on Anthropic?
Anthropic offers Claude Sonnet 4 with pay-as-you-go pricing at $3.00/1M input tokens. Anthropic is a safety-focused AI research company and creator of the Claude model family, offering API access through the Anthropic Console for text generation, analysis, and coding tasks.
Compare Claude Sonnet 4 across 4 providers to find the best fit for your use caseInput / 1M
$3.00
Output / 1M
$15.00
Cache
Not sourced
Batch
Not sourced
Setup recipe
Python + curlInstall
pip install anthropicAuth
export ANTHROPIC_API_KEY=...Call
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-sonnet-4-20250514",Model ID
claude-sonnet-4-20250514Request example
import anthropic
client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
model="claude-sonnet-4-20250514",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)Gotchas
- Use provider model ID "claude-sonnet-4-20250514", not the LLMReference slug "claude-sonnet-4".
- Use the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".
- The examples expect ANTHROPIC_API_KEY; rename it only if your application config maps the new variable.
Compare Claude Sonnet 4 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Anthropic | $3.00 | $15.00 |
| AWS Bedrock | $8.00 | $40.00 |
| OpenRouter | $3.00 | $15.00 |
| Vercel AI Gateway | $3.00 | $15.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $3.00 |
| Output tokens | $15.00 |
Capabilities
VisionMultimodalStructured Outputs
About Claude Sonnet 4
Claude Sonnet 4 API snapshot (claude-sonnet-4-20250514) is deprecated and scheduled to retire from Anthropic-operated platforms on June 15, 2026. Use Claude Sonnet 4.6 for current integrations.
Get Started
Model Specs
Released2025-08-01
Context200k