Claude Opus 4.8

anthropic/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.

Input price
$5.00USD / 1M tokens
Output price
$25.00USD / 1M tokens
Cache read
$0.50USD / 1M tokens
Cache write
$6.25USD / 1M tokens
Context window
1M
Max output
128K

Specifications

CapabilitiesChatVisionReasoningStructured outputFunction calling
Input
Text, image
Output
Text
Available

Questions

FAQ

How do I call Anthropic Claude Opus 4.8 through SandBase?

Create a SandBase API key, then send requests with the model ID "anthropic/claude-opus-4.8" to Chat Completions API (/v1/chat/completions) or Messages API (/v1/messages) at https://api.sandbase.ai. The request examples on this page show the exact payload.

How much does Anthropic Claude Opus 4.8 cost?

$5 per 1M input tokens and $25 per 1M output tokens, billed per request from your SandBase balance. Discounts, when available, are shown in the pricing on this page.

What is the context window of Anthropic Claude Opus 4.8?

1M tokens of context, with up to 128K output tokens per response.

Which features does Anthropic Claude Opus 4.8 support?

Anthropic Claude Opus 4.8 supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.

Do I need a separate Anthropic account?

No. One SandBase API key and balance gives you access to Anthropic Claude Opus 4.8 and the other models in the catalog; you do not need to sign up with Anthropic separately.