MODELS / ANTHROPIC

Claude Opus 4.5

Claude Opus 4.5 is Anthropic’s latest model in the Opus series, meant for demanding reasoning tasks and complex problem solving. This model has improvements in general intelligence and vision compared to previous iterations. In addition, it is suited for difficult coding tasks and agentic workflows, especially those with computer use and tool use, and can effectively handle context usage and external memory files.

TEXTREASONINGEXPLICIT-CACHINGFILE-INPUTREASONINGTOOL-USEVISIONWEB-SEARCH
200K
CONTEXT WINDOW
64K
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-4.5",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
INPUT: file, image, textOUTPUT: textRELEASED: 2025-11-24
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