Anthropic: Claude Opus 4.8 (Fast)

Higher cost

Provided by OpenRouter

Fast-mode variant of [Opus 4.8](/anthropic/claude-opus-4.8) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 4.8. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode

Specifications

Context Length

1,000,000 tokens

Input Price

$10.00/M

Output Price

$50.00/M

Vision Support

Yes

Capabilities

TextVisionFast

About Anthropic: Claude Opus 4.8 (Fast)

Strengths

•Multimodal understanding - can process text and images
•Large context window (1000k tokens) for long conversations
•Fast response times for real-time interactions

Use Cases

•Image and document understanding
•Content creation and writing assistance
•General conversations and Q&A

Limitations

Performance may vary based on query complexity, context length, and task type. Consider using higher-tier models for production-critical applications.

Sample Prompts

Try these prompts to explore Anthropic: Claude Opus 4.8 (Fast)'s capabilities:

Analyze this image and describe what you see in detail

Extract the key information from this screenshot

Compare the two images and explain the differences

Tip: Customize these prompts to fit your specific needs and use cases.

Credits required

Anthropic: Claude Opus 4.8 (Fast) uses tiered credit pricing. Subscribe for a monthly credit allowance, connect your own provider API key (BYOK), or browse lower-cost models on the catalog.

Credit cost per message is shown in the model picker. Economy models typically cost 1 credit; frontier models cost more.

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