FrontierAnthropic

Claude Opus 4

Context

200K tokens

Pricing

$15/M input, $75/M output

Modalities

text, image, code

Released

May 2025

Overview
Anthropic's most capable model, built for complex reasoning, extended thinking, and tasks that demand sustained multi-step analysis. Claude Opus 4 sets a new bar for frontier intelligence with a 200K context window.
Why it matters
Opus 4 is the model you reach for when the problem is genuinely hard — multi-document synthesis, nuanced legal analysis, PhD-level research, or agentic workflows that run for minutes. Its extended-thinking mode lets it 'show its work' on complex chains of reasoning, which matters for regulated industries that need auditable AI decisions. For investors, Opus 4 represents Anthropic's flagship competitive positioning against OpenAI's o3 and Google's Gemini 2.5 Pro — the model that justifies enterprise contracts.

Key strengths

  • Best-in-class extended thinking and multi-step reasoning
  • 200K token context window
  • Superior performance on complex agentic tasks
  • Strong safety and instruction-following alignment
  • Excellent at nuanced, long-form analysis

We cover ai models every week.

Get the 5 AI stories that matter — free, every Friday.

Know the terms. Know the moves.

Get the 5 AI stories that matter every Friday — free.

Free forever. No spam.