Provider: OpenAI
License: OpenAI API Terms of Use
Access: API access via gpt-4-5-preview endpoint on OpenAI Platform
Modalities: Text-only
Release Type: Experimental / Preview (not final release model)
🔍 Overview
GPT-4.5 Preview is a forward-looking experimental release of OpenAI’s anticipated GPT-4.5 architecture. Designed to provide developers early access to improvements in speed, consistency, and multi-step reasoning, this version is intended for preview purposes only and may evolve in future production versions.
Key characteristics:
- ⚡ Faster than GPT-4 Turbo: Optimized for interactive usage and low-latency pipelines
- 🧠 Improved Reasoning: Handles long chains of logic with greater stability
- 📏 128K Context: Useful for summarization, long documents, and structured outputs
- 🔬 Preview-Only: Subject to change; does not represent a finalized GPT-4.5 product
⚙️ Technical Specs
- Architecture: Transformer (details not publicly disclosed)
- Modalities: Text-only (no vision/audio)
- Context Length: 128,000 tokens
- Training: RLHF and instruction fine-tuning
🚀 Deployment
- API Endpoint:
gpt-4-5-preview - Use Cases: Experimental apps, long-context chat, evaluations of future GPT behavior
- Availability: Limited to OpenAI platform (not integrated into ChatGPT product at launch)