Anthropic models

Claude is a family of state-of-the-art large language models developed by Anthropic.

Using the API

Use Chat completion API to call Claude models. See the pricing page for pricing details.

Feature	Claude Opus 4.6	Claude Sonnet 4.6	Claude Haiku 4.5	Claude 4 Sonnet	Claude 4 Opus	Claude 3.7 Sonnet	Claude 3.5 Sonnet	Claude 3.5 Haiku
Description	Anthropic’s latest flagship model	High-performance flagship for real-time applications	Next-generation fast-response model	Most advanced Claude model	Highly capable for complex tasks	Enhanced Claude 3.5 Sonnet	Versatile and intelligent	Fast and efficient
Strengths	Agentic planning, coding, complex reasoning	Multimodal understanding, fast reasoning, cost-effectiveness	Lightning-fast inference, high performance	Top-level intelligence and reasoning	Exceptional fluency and understanding	Improved performance and efficiency	Balanced performance	Quick and accurate
Multilingual	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Vision	Yes	Yes	Yes	Yes	Yes	No	No	No
Tool calls	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
API model name	`claude-opus-4-6`	`claude-sonnet-4-6`	`claude-haiku-4-5`	`claude-sonnet-4-20250514` `claude-sonnet-4-20250514-thinking`	`claude-opus-4-20250514` `claude-opus-4-20250514-thinking`	`claude-3-7-sonnet-latest` `claude-3-7-sonnet-20250219`	`claude-3-5-sonnet-20241022` `claude-3-5-sonnet-20240620` `claude-3-5-sonnet-latest`	`claude-3-5-haiku-20241022` `claude-3-5-haiku-latest`
Comparative latency	Fast	Fast	Fastest	Fastest	Fast	Fast	Moderately fast	Fastest
Context window	1M	1M	200K	200K	200K	200K	200K	200K
Max output	128K tokens	128K tokens	64K tokens	8192 tokens	4096 tokens	8192 tokens	8192 tokens	8192 tokens
Training data cut-off	Aug 2025	Aug 2025	Jul 2025	May 2025	May 2025	June 2024	June 2024	June 2024