Claude Opus 4.8

anthropic

Cross-checked

A+
Coding Index
107.83
Coding tier
A+
Context
1,000,000
Input Price
$5
per 1M tokens
Output Price
$25
per 1M tokens

DeepSeek V4 Flash 0731 = 100. The index reflects two shared tests, not capability multiples or statistically established gaps. Results reflect particular model configurations. Agent harnesses, reasoning effort, tools, budgets and tasks may differ. Close indices do not establish superiority. B describes a relative position in this selected group, not an inability to code.

OpenRouter quote 2026-10-11

Capabilities & Recommended Uses

Strengths

  • •Best-in-class code reasoning and architecture design
  • •Excels at complex multi-file refactoring
  • •Superior at understanding large codebases
  • •Strong at following nuanced instructions

Best For

  • •Complex architecture
  • •Multi-file refactoring
  • •Code review
  • •Claude Code

Weaknesses

  • •Most expensive model on the market
  • •Slower response times than smaller models
Benchmark evidence and ranking method · Claude Opus 4.8

Cross-checked

Terminal-Bench 4.0 · Claude Code · max: 23.64% · 95% CI ± 3.56%

Artificial Analysis · Claude Opus 4.8 (Adaptive Reasoning, Max Effort)

Test configuration: max

Terminal-Bench 2.1: 84.64% · SciCode: 54.40%

LiveBench · 2026-06-25 · claude-opus-4-8-max-effort

Coding: 81.83% · Agentic Coding: 50.50%

ModelRank assigns editorial tiers using public coding evidence, not automatic index thresholds or statistically proven classes. Price, speed, context size and sponsorship do not affect tiers.

DeepSeek V4 Flash 0731 = 100. The index reflects two shared tests, not capability multiples or statistically established gaps.

Results reflect particular model configurations. Agent harnesses, reasoning effort, tools, budgets and tasks may differ. Close indices do not establish superiority. B describes a relative position in this selected group, not an inability to code.

Data checked: 2026-09-10. Snapshot date is the retrieval date, not necessarily the evaluation date.

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Frequently Asked Questions

What is Claude Opus 4.8's coding score and ranking tier?

Claude Opus 4.8 by anthropic is rated as Tier A+ on ModelRank with a coding score of 107.83 (Reference baseline = 100) as a reference index derived from public benchmark evidence. Tiers are editorial assessments; the index does not establish real-world capability differences.

What is the API pricing and context window for Claude Opus 4.8?

Claude Opus 4.8 features a 1,000,000 token context window. Pricing is $5 per 1M input tokens and $25 per 1M output tokens (OpenRouter quote).

What programming tasks is Claude Opus 4.8 best suited for?

Claude Opus 4.8 is recommended for: Complex architecture, Multi-file refactoring, Code review, Claude Code. Key strengths include: Best-in-class code reasoning and architecture design, Excels at complex multi-file refactoring, Superior at understanding large codebases, Strong at following nuanced instructions.

Try Claude Opus 4.8

Last updated: October 11, 2026