Reasoning Tools JSON

Claude model for demanding reasoning and long-horizon agentic work

anthropic/claude-fable-5-1 2026-09-01 1M context $10/M input $50/M output
24 providers
Reasoning Tools

Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...

anthropic/claude-opus-5 2026-07-24 1M context $5/M input $25/M output
32 providers
Tools JSON

Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...

anthropic/claude-sonnet-5 2026-06-30 1M context $2/M input $10/M output
35 providers
Reasoning Tools

Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...

anthropic/claude-fable-5 2026-06-09 1M context $10/M input $50/M output
37 providers
Reasoning Tools

Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents

anthropic/claude-opus-4-8 2026-05-28 1M context $5/M input $25/M output
44 providers
Reasoning Tools

Stronger Opus tier for advanced software work and high-stakes reasoning

anthropic/claude-opus-4-7 2026-04-16 1M context $5/M input $25/M output
40 providers
Reasoning Tools

Claude workhorse for coding agents, careful analysis, and production cost control

anthropic/claude-sonnet-4-6 2026-02-17 1M context $3/M input $15/M output
45 providers
Reasoning Tools

High-end Claude for difficult coding, planning, and slower expert reasoning

anthropic/claude-opus-4-6 2026-02-05 1M context $5/M input $25/M output
37 providers
Reasoning Tools JSON

Flagship Claude model for deep reasoning, coding, and long-horizon agents

anthropic/claude-opus-4-5-20251101 2025-11-01 200K context $5/M input $25/M output
17 providers
Tools JSON

Fast Claude model for responsive assistance, classification, and lightweight agents

anthropic/claude-haiku-4-5-20251001 2025-10-15 200K context $1/M input $5/M output
20 providers
Reasoning Tools

Fast Claude lane for lightweight agents, office tasks, and responsive chat

anthropic/claude-haiku-4-5 2025-10-15 200K context $1/M input $5/M output
23 providers
Reasoning Tools JSON

Balanced Claude model for coding, analysis, agent workflows, and cost control

anthropic/claude-sonnet-4-5-20250929 2025-09-29 200K context $3/M input $15/M output
18 providers
Reasoning Tools

Balanced Claude model for coding, analysis, agent workflows, and cost control

anthropic/claude-sonnet-4-5 2025-09-29 200K context $3/M input $15/M output
20 providers
Reasoning Tools JSON

Flagship Claude model for deep reasoning, coding, and long-horizon agents

anthropic/claude-opus-4-1-20250805 2025-08-05 200K context $15/M input $75/M output
13 providers