AnthropicFast
Claude Sonnet 4
Balanced Anthropic model with strong performance and good speed/cost trade-offs.
Input Price
$3.00/1M tokens
Output Price
$15.00/1M tokens
Context Window
200K tokens
Latency (p50)
180msavg
Uptime
99.96%30d
Start using now
Select a billing plan and activate this model.
an_sk_8f3a...c9e1
Input$3.00/1M tokens
Output$15.00/1M tokens
Free tier1M tokens/month
No upfront commitment. Cancel anytime.
About this model
Claude Sonnet 4 offers an excellent balance between capability, speed, and price. It handles most production tasks with ease while maintaining Anthropic's signature careful, well-reasoned outputs. A great default choice for teams who want quality without the premium cost of Opus.
What it's best for
- General-purpose AI applications
- Code review and generation
- Document summarization
- Conversational AI
Sample use cases
1
Developer productivity tools2
Customer-facing AI assistants3
Data analysis pipelines4
Educational platformsLive stats
Requests today
2.4M
Avg latency
180ms
Active agents
8,432
Error rate
0.02%