Alternatives to Claude Opus 5.5

These tools sit near Claude Opus 5.5. Compare features and pricing before you switch.

Open Claude Opus 5.5 listing · AI Tools Rankings 2026 | Hot & Featured

Alternatives

Claude Fable 5.1: Anthropic's model for the most demanding reasoning.
Claude Opus 5: the previous Opus flagship, still available at $5/$25.
GPT-6 Sol: OpenAI's same-day release at $2/$10.

Claude Fable 5.1

Anthropic's generally available Fable-class model for coding and knowledge work. $10/$50 per 1M tokens, cache reads $0.25, API id claude-fable-5-1.

#Anthropic

—DR: —AS: —

Claude Opus 5

Models

Anthropic's frontier Opus model with 1M-token context and effort-controlled reasoning, near-Fable-5 intelligence at Opus-4.8 pricing for agents and coding.

#Anthropic

2500000DR: 92AS: 95

GPT-6 Sol

Models

OpenAI GPT-6 Sol: 1.05M context, reasoning up to max effort and $2/$10 per 1M tokens, with day-one GitHub Copilot support.

#OpenAI

15000000DR: 95AS: 95