Skip to main content
Inflection AIReleased March 7, 2024

Inflection 2.5

Undisclosed parameters

Inflection 2.5 is Inflection AI's entry in a crowded field. Context window: 0.008K tokens.

Context

8K

Input

N/A

Key Specifications

🏆

Arena Rank

Not disclosed

📐

Context Window

8K

📥

Input Price

per 1M tokens

N/A

📤

Output Price

per 1M tokens

N/A

🧠

Parameters

Undisclosed

🔒

Open Source

No

Best For

Conversational AIemotional intelligenceempathy

About Inflection 2.5

Inflection 2.5, developed by Inflection AI, is a conversational AI model with an 8K token context window designed to excel at empathetic, emotionally intelligent interactions. Unlike most AI models that optimize for benchmark performance, Inflection 2.5 prioritizes conversational quality, emotional understanding, and relational depth. It powers the Pi personal AI assistant, which focuses on being a supportive, thoughtful conversational partner. The model achieves competitive performance on standard reasoning benchmarks while maintaining its distinctive conversational warmth. Inflection AI, co-founded by DeepMind co-founder Mustafa Suleyman and LinkedIn co-founder Reid Hoffman, built this model to explore AI-human interaction quality rather than pure task performance. While Suleyman later joined Microsoft, Inflection 2.5 remains notable as an exploration of what AI models can achieve when optimized for emotional intelligence.

Pricing per 1M tokens

Input Tokens

N/A

Output Tokens

N/A

Compare Inflection 2.5

See how Inflection 2.5 stacks up against other leading AI models

Inflection 2.5 vs Claude Opus 4Compare →Inflection 2.5 vs GPT-o3Compare →Inflection 2.5 vs GPT-4oCompare →Inflection 2.5 vs GPT-o1Compare →Inflection 2.5 vs DeepSeek R1Compare →

Other Top Models

Claude Opus 4Anthropic
#1
GPT-o3OpenAI
#2
GPT-4oOpenAI
#2
GPT-o1OpenAI
#3
DeepSeek R1DeepSeek
#3
Claude Sonnet 4Anthropic
#3

Explore More

Model Benchmarks →All Models →

Frequently Asked Questions

What is Inflection 2.5?▾
Inflection 2.5, developed by Inflection AI, is a conversational AI model with an 8K token context window designed to excel at empathetic, emotionally intelligent interactions. Unlike most AI models that optimize for benchmark performance, Inflection 2.5 prioritizes conversational quality, emotional understanding, and relational depth. It powers the Pi personal AI assistant, which focuses on being a supportive, thoughtful conversational partner. The model achieves competitive performance on standard reasoning benchmarks while maintaining its distinctive conversational warmth. Inflection AI, co-founded by DeepMind co-founder Mustafa Suleyman and LinkedIn co-founder Reid Hoffman, built this model to explore AI-human interaction quality rather than pure task performance. While Suleyman later joined Microsoft, Inflection 2.5 remains notable as an exploration of what AI models can achieve when optimized for emotional intelligence.
How much does Inflection 2.5 cost?▾
Inflection AI charges N/A per 1M input tokens for Inflection 2.5, with output at N/A. Competitive with other models in its tier.
What is Inflection 2.5's context window?▾
Inflection 2.5 supports up to 8K tokens per request. A larger context window allows the model to reason over longer inputs, which matters for document analysis, code review, and multi-turn conversations.
Is Inflection 2.5 open source?▾
Not open source. Inflection 2.5 is available through Inflection AI's managed API. That means easier setup, but you're dependent on their infrastructure and pricing.
What is Inflection 2.5 best for?▾
Inflection AI positions Inflection 2.5 for: Conversational AI, emotional intelligence, empathy. Real-world performance will depend on your specific prompts and data, but these are the intended strengths.