Description
Phi-4-reasoning-plus is an enhanced 14B parameter model from Microsoft, fine-tuned from Phi-4 with additional reinforcement learning to boost accuracy on math, science, and code reasoning tasks. It uses the same dense decoder-only transformer architecture as Phi-4, but generates longer, more comprehensive outputs structured into a step-by-step reasoning trace and final answer. While it offers improved benchmark scores over Phi-4-reasoning across tasks like AIME, OmniMath, and HumanEvalPlus, its responses are typically ~50% longer, resulting in higher latency. Designed for English-only applications, it is well-suited for structured reasoning workflows where output quality takes priority over response speed.
API Usage Examples
OpenAI Compatible Endpoint
Use this endpoint with any OpenAI-compatible library. Model: Microsoft: Phi 4 Reasoning Plus (microsoft/phi-4-reasoning-plus)
curl https://api.ridvay.com/v1/chat/completions -H "Content-Type: application/json" -H "Authorization: Bearer YOUR_API_KEY" -d '{
"model": "microsoft/phi-4-reasoning-plus",
"messages": [
{
"role": "user",
"content": "Explain the capabilities of the Microsoft: Phi 4 Reasoning Plus model"
}
],
"temperature": 0.7,
"max_tokens": 1024
}'Supported Modalities
- Text
API Pricing
- Input: 0.07$ / 1M tokens
- Output: 0.35$ / 1M tokens
Token Limits
- Max Output: 32,768 tokens
- Max Context: 32,768 tokens
Subscription Tiers
- free
- pro
- ultimate