Claude vs. Command

Overview

Claude is Anthropic's family of safety-focused language models for coding, agents, reasoning, and knowledge work. Claude Opus 5 is the current Opus generation.

Claude is Anthropic's flagship model family and was originally trained using the company's Constitutional AI feedback method. Anthropic introduced the Claude 3 Haiku, Sonnet, and Opus tiers in 2024, added extended thinking with Claude 3.7 in 2025, and launched the Claude 4 generation for coding and agent workflows in May 2025. Claude Opus 5, released in July 2026, adds a one-million-token context window, thinking by default, deeper test-time reasoning, and stronger long-horizon coding, multi-agent, vision, and enterprise-work capabilities.

Initial release: 2023-03-14

Current generation: Claude Opus 5

Reference

https://www.anthropic.com/claude

Further Reading

• https://www.anthropic.com/index/constitutional-ai-harmlessness-from-ai-feedback
• https://www.anthropic.com/news/claude-3-family
• https://www.anthropic.com/news/claude-3-5-sonnet
• https://www.anthropic.com/news/claude-3-7-sonnet
• https://www.anthropic.com/news/claude-4
• https://www.anthropic.com/news/claude-opus-4-8
• https://platform.claude.com/docs/en/about-claude/models/whats-new-opus-5

Overview

Command is Cohere's enterprise model family for agents, retrieval-augmented generation, multilingual work, and private deployment. Command A+ is the current open-weight generation.

Cohere develops enterprise language models with an emphasis on retrieval, citations, multilingual applications, tool use, and data sovereignty. Command A+, released in May 2026, is a 218B-parameter mixture-of-experts model with 25B active parameters. It supports text and image input, reasoning, agentic workflows, 48 languages, and private deployment under the Apache 2.0 license.

Initial release: 2021-11-15

Current generation: Command A+

Reference

https://cohere.com/command

Further Reading

• https://cohere.com/blog/command-a-plus