Anthropic's advanced AI assistant. Safe, powerful, and trustworthy.
API key validity status
Available models count
Organization ID
sk-ant-...Anthropic API key, starts with sk-ant-
| Model | Input | Output | Best For |
|---|---|---|---|
| Haiku | $1/M input | $5/M output | Fastest model |
| Sonnet | $3/M input | $15/M output | Balanced intelligence |
| Opus | $5/M input | $25/M output | Most intelligent |
Claude 4.6 Opus
Most intelligent model
Claude 4.6 Sonnet
Optimal balance
Claude 4.5 Haiku
Fastest & cheapest
Claude 4.5 Sonnet
Previous generation