MODELS / ANTHROPIC

Claude Opus 4.8

Opus 4.8 is Anthropic's best generally available model for coding, agentic tasks, and enterprise workflows. It builds on previous Opus models with stronger performance on complex, multi-step coding tasks, long-horizon agents, document drafting, data analysis, and presentations.

TEXTREASONINGZERO DATA RETENTIONTOOL-USEREASONINGVISIONFILE-INPUTEXPLICIT-CACHINGWEB-SEARCH
1M
CONTEXT WINDOW
128K
MAX OUTPUT TOKENS
$5 / 1M tokens
INPUT PRICE
$25 / 1M tokens
OUTPUT PRICE
QUICKSTART

Call it in one request.

OpenAI-compatible — change the base URL, and the setup is complete.

SHELL
curl https://enterprise.blackbox.ai/v1/chat/completions \
  -H "Authorization: Bearer $BLACKBOX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "blackboxai/anthropic/claude-opus-4.8",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
INPUT: text, image, fileOUTPUT: textRELEASED: 2026-05-28REGIONS: US, EU
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