claude-opus-4-8

Anthropicclaude-opus-4-8

Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token context window. It is suited for highly autonomous agents, long-horizon agentic work, knowledge work, and memory-driven tasks where coherence over extended sessions matters. It is particularly strong on multi-step reasoning, complex coding, and end-to-end project orchestration - large codebases, multi-stage debugging, and long-running asynchronous agent pipelines. Beyond coding, it handles knowledge work such as drafting documents, building presentations, and analyzing data, maintaining quality across very long outputs.

API Pricing

Price typeBilling expression
Official price
Base pricingPricing tier: base
  • Input usage × $5.00
  • Output usage × $25.00
  • Cached read × $0.50
  • Cache creation × $6.25
  • Cache creation (1 hour) × $10.00
Claude_Pro×0.880% of official list price
Base pricingPricing tier: base
  • Input usage × $4.00
  • Output usage × $20.00
  • Cached read × $0.40
  • Cache creation × $5.00
  • Cache creation (1 hour) × $8.00

Group multiplier: x0.8

Claude_Ultra×0.990% of official list price
Base pricingPricing tier: base
  • Input usage × $4.50
  • Output usage × $22.50
  • Cached read × $0.45
  • Cache creation × $5.63
  • Cache creation (1 hour) × $9.00

Group multiplier: x0.9

Official pricing is subject to the model provider's latest published pricing and may vary by request method or service region. Claude_Pro, Claude_Ultra — TokenByte channel pricing. Actual prices and availability reflect current platform data.

Model information

Model providerAnthropic
Model IDclaude-opus-4-8
Context window1000000
InputTextImage
OutputText

Frequently asked questions

01

What is Claude Opus 4.8?

Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token context window. It is suited for highly autonomous agents, long-horizon agentic work, knowledge work, and memory-driven tasks where coherence over extended sessions matters.
02

How much does Claude Opus 4.8 cost?

Claude Opus 4.8 costs $5.00/M input tokens and $25.00/M output tokens, with separate rates for Cache Read at $0.50/M tokens, Cache Write at $6.25/M tokens, Cache Write (1h) at $10.00/M tokens, and Web Search at $10.00/1K calls.
03

What is the context length of Claude Opus 4.8?

Claude Opus 4.8 has a 1,000,000 token context window. It supports up to 128,000 completion tokens.