Claude Opus 4.8

Claude Opus 4.8 is an AI model available through Atoms for coding, reasoning, research, and tool-driven workflows. Anthropic’s latest Opus 4 model for serious coding, reliable AI agents, multimodal analysis, and high-stakes professional work. Review the model details below, compare alternatives, and start with the example prompt in the hero.

Claude Opus 4.8 is Anthropic’s latest and most capable model in the Opus 4 series. Anthropic positions it for serious coding, production AI agents, and complex professional work where judgment, consistency, and reliable follow-through matter. It succeeds Opus 4.7 with improvements across coding, agentic skills, reasoning, and practical knowledge work.

• 1M-token context: works across large codebases, extensive documents, and long-running project histories
• Advanced coding: plans carefully, operates across larger codebases, catches mistakes, and produces production-ready implementations with less oversight
• Reliable agents: orchestrates multi-tool workflows, sustains long-running tasks, and verifies results before reporting completion
• Multimodal knowledge work: reasons over PDFs, diagrams, and other unstructured content for research and enterprise workflows
• Adaptive thinking: adjusts reasoning effort to task complexity, spending more time on harder problems and responding faster to simpler ones

Anthropic lists Claude Opus 4.8 API pricing starting at $5 per million input tokens and $25 per million output tokens, with separate savings available through prompt caching and batch processing. US-only inference is offered at 1.1× standard input and output pricing.