MODELS / OPENAI

GPT-5 pro

GPT-5 pro uses more compute to think harder and provide consistently better answers. Since GPT-5 pro is designed to tackle tough problems, some requests may take several minutes to finish.

TEXTREASONINGFILE-INPUTREASONINGTOOL-USEVISIONWEB-SEARCH
400K
CONTEXT WINDOW
272K
MAX OUTPUT TOKENS
$15
INPUT PRICE / 1M TOKENS
$120
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/openai/gpt-5-pro",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything GPT-5 pro supports, in one table.

MODEL ID
blackboxai/openai/gpt-5-pro
DEVELOPED BY
OpenAI
MODEL TYPE
Text
RELEASED
Oct 6, 2025
CONTEXT WINDOW
400K
MAX OUTPUT TOKENS
272K
INPUT MODALITIES
text, image, pdf
OUTPUT MODALITIES
text
INPUT PRICE
$15 / 1M tokens
OUTPUT PRICE
$120 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Not available (closed-weight model)
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoning