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Claude Opus 4.8

LegacyFrontier

Anthropic's current Opus-tier Claude model, documented for complex reasoning, coding, and multimodal enterprise workloads below the newer Fable tier.

Newer version: Claude Opus 5

Provider

Anthropic

Model family

Anthropic Claude

Multimodal LLM

Cost tier

Opus

Status

Legacy

Why teams choose it

🧠

Complex reasoning

Useful for workflows that require structured thinking, multi-step logic, and deeper analysis than lightweight models provide.

📎

Long-context analysis

Helps teams summarize, compare, and extract insights from long documents without losing important nuance.

⚙️

Coding and tools

Works well for code assistance, tool calling, and agent workflows where instructions must stay consistent across steps.

✍️

Cost-efficient routing

Useful as part of a routing stack where cheap models handle drafts and confirmations and this tier handles genuinely hard passages.

Tradeoffs to know

  • Verify API model IDs and host availability before switching from Opus 4.7.

Benchmarks

No independent or vendor benchmark scores in this catalog entry.

See comparisons →

Technical specs

Inputs
text, image
Outputs
text
License
Proprietary API
Capabilities
  • reasoning
  • coding
  • analysis
  • multimodal

Anthropic Claude family lineup


Related models

Claude Opus 4.8 FAQ

What is Claude Opus 4.8?

Anthropic's current Opus-tier Claude model, documented for complex reasoning, coding, and multimodal enterprise workloads below the newer Fable tier.

When does Claude Opus 4.8 fit best?

Policy-sensitive drafting

What should teams watch out for with Claude Opus 4.8?

Verify API model IDs and host availability before switching from Opus 4.7.

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