MODELS / ANTHROPIC

Claude Opus 4

Claude Opus 4 is Anthropic's most powerful model yet and the state-of-the-art coding model. It delivers sustained performance on long-running tasks that require focused effort and thousands of steps, significantly expanding what AI agents can solve. Claude Opus 4 is ideal for powering frontier agent products and features.

TEXTREASONINGFILE-INPUTREASONINGTOOL-USEVISIONEXPLICIT-CACHING
200K
CONTEXT WINDOW
8.2K
MAX OUTPUT TOKENS
$15 / 1M tokens
INPUT PRICE
$75 / 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",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
INPUT: file, image, textOUTPUT: textRELEASED: 2025-05-22
RELATED MODELS

Also worth a look.

ANTHROPIC

Claude Opus 4.6

1M context · $5 / 1M tokens input · $25 / 1M tokens output

ANTHROPIC

Claude Sonnet 4.6

1M context · $3 / 1M tokens input · $15 / 1M tokens output

ANTHROPIC

Claude 3 Haiku

200K context · $0.25 / 1M tokens input · $1.25 / 1M tokens output