All AI models · Anthropic

Anthropic model list

All 23 notable Anthropic models tracked in 2026, out of 279 across every lab. Sorted newest first, with context length and capabilities. Data from the open models.dev database.

23
Models
20
Reasoning
23
Vision
0
Open weights
Model Context Capabilities
Claude Opus 5
anthropic/claude-opus-5
Strongest Claude Opus model for coding, agents, and professional work
 1000K Reasoning Tools Vision
Claude Sonnet 5
anthropic/claude-sonnet-5
Everyday Claude agent model for coding, planning, browsing, and general work
 1000K Reasoning Tools Vision
Claude Fable 5
anthropic/claude-fable-5
Claude model for creative writing, analysis, and controlled agent workflows
 1000K Reasoning Tools Vision
Claude Opus 4.8
anthropic/claude-opus-4-8
Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents
 1000K Reasoning Tools Vision
Claude Opus 4.7
anthropic/claude-opus-4-7
Stronger Opus tier for advanced software work and high-stakes reasoning
 1000K Reasoning Tools Vision
Claude Sonnet 4.6
anthropic/claude-sonnet-4-6
Claude workhorse for coding agents, careful analysis, and production cost control
 1000K Reasoning Tools Vision
Claude Opus 4.6
anthropic/claude-opus-4-6
High-end Claude for difficult coding, planning, and slower expert reasoning
 1000K Reasoning Tools Vision
Claude Opus 4.5 (latest)
anthropic/claude-opus-4-5
Flagship Claude model for deep reasoning, coding, and long-horizon agents
 200K Reasoning Tools Vision
Claude Opus 4.5
anthropic/claude-opus-4-5-20251101
Flagship Claude model for deep reasoning, coding, and long-horizon agents
 200K Reasoning Tools Vision
Claude Haiku 4.5 (latest)
anthropic/claude-haiku-4-5
Fast Claude lane for lightweight agents, office tasks, and responsive chat
 200K Reasoning Tools Vision
Claude Haiku 4.5
anthropic/claude-haiku-4-5-20251001
Fast Claude model for responsive assistance, classification, and lightweight agents
 200K Reasoning Tools Vision
Claude Sonnet 4.5 (latest)
anthropic/claude-sonnet-4-5
Balanced Claude model for coding, analysis, agent workflows, and cost control
 200K Reasoning Tools Vision
Claude Sonnet 4.5
anthropic/claude-sonnet-4-5-20250929
Balanced Claude model for coding, analysis, agent workflows, and cost control
 200K Reasoning Tools Vision
Claude Opus 4.1 (latest)
anthropic/claude-opus-4-1
Flagship Claude model for deep reasoning, coding, and long-horizon agents
 200K Reasoning Tools Vision
Claude Opus 4.1
anthropic/claude-opus-4-1-20250805
Flagship Claude model for deep reasoning, coding, and long-horizon agents
 200K Reasoning Tools Vision
Claude Opus 4 (latest)
anthropic/claude-opus-4-0
Flagship Claude model for deep reasoning, coding, and long-horizon agents
 200K Reasoning Tools Vision
Claude Sonnet 4 (latest)
anthropic/claude-sonnet-4-0
Balanced Claude model for coding, analysis, agent workflows, and cost control
 200K Reasoning Tools Vision
Claude Sonnet 4
anthropic/claude-sonnet-4-20250514
Balanced Claude model for coding, analysis, agent workflows, and cost control
 200K Reasoning Tools Vision
Claude Opus 4
anthropic/claude-opus-4-20250514
Flagship Claude model for deep reasoning, coding, and long-horizon agents
 200K Reasoning Tools Vision
Claude Sonnet 3.7
anthropic/claude-3-7-sonnet-20250219
Balanced Claude model for coding, analysis, agent workflows, and cost control
 200K Reasoning Tools Vision
Claude Sonnet 3.5 v2
anthropic/claude-3-5-sonnet-20241022
Balanced Claude model for coding, analysis, agent workflows, and cost control
 200K Tools Vision
Claude Haiku 3.5
anthropic/claude-3-5-haiku-20241022
Fast Claude model for responsive assistance, classification, and lightweight agents
 200K Tools Vision
Claude Haiku 3
anthropic/claude-3-haiku-20240307
Legacy model retained for compatibility with older integrations
 200K Tools Vision

Which of these can I call for free?

This page lists what exists, not what is free. For the models you can call right now with one free key and no credit card, see the live API catalog or read the free LLM API guide. Open-weight models can also be run on your own GPU, and the VRAM calculator tells you whether yours is big enough.

Model lists by lab

OpenAI (56) Google (43) Alibaba (Qwen) (33) Anthropic (23) NVIDIA (20) Mistral (18) Zhipu AI (14) Cohere (14) MiniMax (7) Moonshot AI (7) xAI (6) Xiaomi (6) DeepSeek (5) Meta (4) Poolside (4) DeepReinforce (4) Perplexity (3) StepFun (3) Sakana AI (2) Tencent (2) Sarvam AI (2) Microsoft (1) Thinking Machines (1) Meituan (1)

Model metadata sourced from the open models.dev database. See the full 279-model index for a filterable view across every lab.