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…

TEXTREASONINGFILE-INPUTREASONINGTOOL-USEVISIONEXPLICIT-CACHING
200K
CONTEXT WINDOW
8.2K
MAX OUTPUT TOKENS
$15
INPUT PRICE / 1M TOKENS
$75
OUTPUT PRICE / 1M TOKENS
QUICKSTART

Call it in one request.

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

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
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything Claude Opus 4 supports, in one table.

MODEL ID
blackboxai/anthropic/claude-opus-4
DEVELOPED BY
Anthropic
MODEL TYPE
Text
RELEASED
May 22, 2025
CONTEXT WINDOW
200K
MAX OUTPUT TOKENS
8.2K
INPUT MODALITIES
text, image, pdf
OUTPUT MODALITIES
text
INPUT PRICE
$15 / 1M tokens
OUTPUT PRICE
$75 / 1M tokens
CACHE READ
$1.50 / 1M tokens
CACHE WRITE
$18.75 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Not available (closed-weight model)
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoning