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Anthropic · 2026

Claude Opus 4.5

9.5Frontier

CompanyAnthropic

Release2026

TypeFrontier

Context window500K tokens

Input typesText, Image

Output typesText

ReasoningBest-in-class

CodingBest-in-class

MultimodalPartial

API availableYes

Pricing$15-75 / M tokens

Overview

Claude Opus 4.5 is a frontier model from Anthropic, released in 2026. It accepts text, image as input and produces text. With a context window of 500K tokens, it is well suited to long-context analysis, agentic coding and writing.

Capabilities

On reasoning, Claude Opus 4.5 is rated best-in-class, while its coding ability is best-in-class. Multimodal support: Partial. These characteristics make it a strong fit for long-context analysis, agentic coding and writing. As with any frontier system, real-world performance depends heavily on how you prompt and integrate it.

Availability & Pricing

Claude Opus 4.5 is accessible via an API. Pricing model: $15-75 / M tokens. Availability and pricing for AI models change frequently; confirm the latest details from Anthropic before building on it.

Best Use Cases

The sweet spot for Claude Opus 4.5 is long-context analysis, agentic coding and writing. Teams choosing a model should weigh context length, cost, latency and modality against their workload — Claude Opus 4.5 is a particularly good match when those priorities align with its strengths.

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