Claude Opus 5
A premium model designed for everyday use, offering improved capabilities in coding, reasoning, and agent-based tasks, while remaining more affordable than the next tier up. Available on the Pro and Max plans at Anthropic
Best for
A premium model designed for everyday use, offering improved capabilities in coding, reasoning, and agent-based tasks, while remaining more affordable than the next tier up. Available on the Pro and Max plans at Anthropic
Alternatives
Claude Opus 5.5
An AI model built for code and autonomous agents. It features a context window of one million tokens and enables detailed analysis of documents, charts, and screenshots. It is 40% less expensive than its predecessor (Opus 5)
An AI model built for code and autonomous agents. It features a context window of one million tokens and enables detailed analysis of documents, charts, and screenshots. It is 40% less expensive than its predecessor (Opus 5) » Learn more: ChatGPT Perplexity Tool of the Week Sep 21 – 27, 2026 Verified Tool Freemium 220257 Similar AI Tools GPT-6 Astra Claude Fable 5.1 GPT‑6.1 Sol
GPT-6 Astra
The OpenAI model capable of operating a computer like a human: filling out forms, managing a CRM, coding, analyzing scientific data, or conducting research. With a context of 1 million tokens
The OpenAI model capable of operating a computer like a human: filling out forms, managing a CRM, coding, analyzing scientific data, or conducting research. With a context of 1 million tokens » Learn more: ChatGPT Perplexity Tool of the Week Aug 25 – 31, 2026 Verified Tool Freemium 218548 Similar AI Tools Claude Fable 5.1 Claude Fable 5 Grok 4.6
Claude Fable 5.1
Anthropic's LLM model for coding, research, and long, complex tasks. With improved performance and reduced costs on agent-based workloads. It also produces far fewer false security alerts
Anthropic's LLM model for coding, research, and long, complex tasks. With improved performance and reduced costs on agent-based workloads. It also produces far fewer false security alerts » Learn more: ChatGPT Perplexity Verified Tool Paid 211777 Similar AI Tools GPT-6 Astra Claude Fable 5 Grok 4.6