Keimodel
Log inCompare
Anthropic

Anthropic

Safety-first AI with industry-leading instruction following

Anthropic is an AI safety company founded by ex-OpenAI researchers in 2021. The Claude model family is renowned for its nuanced instruction-following, long-context reasoning, and low rate of hallucinations. Anthropic's Constitutional AI training approach makes Claude particularly strong for professional writing, analysis, and tasks requiring careful judgment.

Founded 2021·5 models·Visit Anthropic

5 Models

Claude Opus 4

Anthropic's most intelligent model

5 cr
Claude Opus 4 is Anthropic's frontier model, designed for the most complex and nuanced tasks. It excels at advanced research, intricate reasoning, and long-form writing while maintaining Anthropic's hallmark low hallucination rates.
200k ctxVisionTool use

Claude Sonnet 4.6

Ideal balance of intelligence and speed

3 cr
Claude Sonnet 4.6 strikes the sweet spot between capability and cost. It delivers near-Opus performance on most tasks at a fraction of the price, making it the recommended model for most production applications.
200k ctxVisionTool use

Claude 3.7 Sonnet

Extended thinking for deep reasoning

3 cr
Claude 3.7 Sonnet introduced extended thinking — the ability to reason through problems step by step before responding. This makes it particularly capable at multi-step mathematics, complex coding, and tasks that benefit from deliberate analysis.
200k ctxVisionTool use

Claude Haiku 4.6

Anthropic's fastest and most affordable model

2 cr
Claude Haiku 4.6 is the compact, high-speed member of the Claude 4 family. It delivers rapid responses at the lowest price in the Claude 4 lineup, making it ideal for customer-facing applications, real-time interactions, and high-volume pipelines where cost efficiency matters.
200k ctxVisionTool use

Claude 3.5 Haiku

Claude's fastest and most compact model

1 cr
Claude 3.5 Haiku is Anthropic's fastest model. Despite its compact size, it outperforms Claude 3 Opus on many benchmarks, making it ideal for real-time applications, customer interactions, and high-throughput pipelines.
200k ctxVisionTool use

Other providers

OpenAIOpenAIGoogleGoogleMetaMetaMistralMistral