MODELS / INCEPTION

Mercury 2

A diffusion-based reasoning LLM that generates text via parallel refinement (not token-by-token), delivering real-time latency with ~1k tokens/sec plus 128K context and built-in tool/JSON support.

TEXTREASONINGREASONINGTOOL-USE
128K
CONTEXT WINDOW
-
MAX OUTPUT TOKENS
$0.25
INPUT PRICE / 1M TOKENS
$0.75
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/inception/mercury-2",
    "messages": [{ "role": "user", "content": "Hello!" }],
    "stream": true
  }'
SPECIFICATIONS

The full spec sheet.

Context, pricing, modalities, routing, and deployment: everything Mercury 2 supports, in one table.

MODEL ID
blackboxai/inception/mercury-2
DEVELOPED BY
Inception
MODEL TYPE
Text
RELEASED
Feb 24, 2026
CONTEXT WINDOW
128K
MAX OUTPUT TOKENS
-
INPUT MODALITIES
text
OUTPUT MODALITIES
text
INPUT PRICE
$0.25 / 1M tokens
OUTPUT PRICE
$0.75 / 1M tokens
CACHE READ
$0.025 / 1M tokens
REASONING
Supported
DATA RETENTION
Standard retention
DEDICATED DEPLOYMENT
Not available (closed-weight model)
SUPPORTED PARAMETERS
max_tokenstemperaturestoptoolstool_choicereasoninginclude_reasoning