MiniMax M2.1 Lightning

minimax/minimax-m2.1-lightning

A chat model with a 205K-token context window, at $0.315 per million input tokens and $2.52 per million output tokens.

Details

Maker
minimax
Kind
Chat
Context window
204,800 tokens
Max output
131,072 tokens
Input
$0.315 per million tokens
Cached input
$0.0315 per million tokens, 90% off
Cache write
$0.39375 per million tokens
Output
$2.52 per million tokens
Capabilities
Reasoning, tool use
Takes
Text
Returns
Text
Zero data retention
Not on every provider
No training on requests
Not on every provider
Released
2025-12-23
Newer model
minimax/minimax-m3Released later by the same maker, costs no more, and lists the same capabilities. Compare the two

Description

MiniMax-M2.1-lightning is a faster version of MiniMax-M2.1, offering the same performance but with significantly higher throughput (output speed ~100 TPS, MiniMax-M2 output speed ~60 TPS).

Call it

curl
curl https://phantom.codes/v1/chat/completions \
  -H "Authorization: Bearer $PHANTOM_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "minimax/minimax-m2.1-lightning",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'

Set PHANTOM_KEY to your key. Any OpenAI client works with the base URL https://phantom.codes/v1.