Claude 3 Opus
The flagship model of Anthropic's Claude 3 series, featuring significant improvements in code generation capability, with the ability to understand complex business logic and maintain context across multiple files.
Core Facts
Timeline (last 90 days)
The per-token price differs significantly across Claude models (such as Claude 3 Haiku, Sonnet and Opus), and output tokens are usually more expensive than input tokens.
Opus usually refers to the Claude 3 Opus model released by Anthropic, which is a large language model (LLM).
The improved reasoning and tool-use capabilities of the Claude 3 Opus model were the technical precondition for Town to achieve product-market fit.
Claude 3 Opus, Claude 3.5 Sonnet, and the not-yet-released Opus 5.5 do not share some unified cross-version failure mode theory.
The model name Opus 5.5 mentioned in the post is currently in question; as of the time of writing, the flagship model series publicly released by Anthropic is Claude 3 Opus and the Claude 3.5 series, and there is no officially released version named Opus 5.5.
Prime Agent, paired with the Opus 5 model, achieved a score of 95.5% on the ARC-AGI-3 benchmark, reportedly surpassing the human expert baseline reported in the paper.
All Facts (7)
Claude 3.5 Sonnet has approached or even surpassed the performance of the early Claude 3 Opus in most benchmark tests.
65%UnverifiedPrime Agent, paired with the Opus 5 model, achieved a score of 95.5% on the ARC-AGI-3 benchmark, reportedly surpassing the human expert baseline reported in the paper.
60%UnverifiedThe per-token price differs significantly across Claude models (such as Claude 3 Haiku, Sonnet and Opus), and output tokens are usually more expensive than input tokens.
50%UnverifiedOpus usually refers to the Claude 3 Opus model released by Anthropic, which is a large language model (LLM).
50%UnverifiedThe improved reasoning and tool-use capabilities of the Claude 3 Opus model were the technical precondition for Town to achieve product-market fit.
50%UnverifiedClaude 3 Opus, Claude 3.5 Sonnet, and the not-yet-released Opus 5.5 do not share some unified cross-version failure mode theory.
50%UnverifiedThe model name Opus 5.5 mentioned in the post is currently in question; as of the time of writing, the flagship model series publicly released by Anthropic is Claude 3 Opus and the Claude 3.5 series, and there is no officially released version named Opus 5.5.
50%