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Anthropic

Claude Opus 4.8

mainstreamClosed

Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It accepts text, image, and file inputs and produces text output, with reasoning support and a 1M-token context window. Priced at 5.0 USD per million input tokens and 25.0 USD per million output tokens, it is positioned as a premium flagship offering for demanding workloads that require strong reasoning and large-context processing.

API Pricing

Input

$5

Output

$25

Cached input

—

Peak hours

—

USD / 1M tokens

※ Verified via OpenRouter live pricing (2026-11-02): $5.0 input / $25.0 output per million tokens.

Specifications

Context window
1M Tokens
Max output
—
Input modalities
Text
License
Closed

Capabilities & use cases

Key capabilities

  • Anthropic Opus family flagship
  • Text, image, and file inputs
  • Text output generation
  • Reasoning support
  • 1M-token context window
  • Premium token-based pricing

Best for

  • Large-context document analysis
  • Complex reasoning tasks
  • Multimodal input processing
  • Flagship-tier production workloads

Official links

Website ↗API platform ↗Pricing page ↗Open in comparator ↗

Same vendor

Claude Sonnet 5.5Claude Haiku 5.5Claude Opus 5.5Claude Fable 5.1

Similar price

GPT-5.5 $30Kimi K3 $15GPT-5.4 $15GPT-5.2 $14GPT-5.6 Terra $12Gemini 3.0 Pro $12

FAQ

What does Claude Opus 4.8 cost?
Claude Opus 4.8 is priced at $25 output and $5 input (USD per 1M tokens)
How large is the context window of Claude Opus 4.8?
Claude Opus 4.8 has a 1M Tokens context window with up to — output.
Where can I access Claude Opus 4.8?
Official channels: Website and API platform.

Data is refreshed daily and cross-checked against two independent sources; please confirm pricing and specs on the vendor page.