Using Phi-2 on Cloudflare Workers AI
Implementation guide · Phi-2 · Microsoft Research
Cloudflare Workers AI exposes Phi-2 through model ID @cf/microsoft/phi-2. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.
Last refreshed 2026-05-19. Next refresh: weekly.
Quick Start
- 1
- 2Use the Cloudflare Workers AI SDK or REST API to call
@cf/microsoft/phi-2— see the documentation for request format.
Code Examples
Pricing on Cloudflare Workers AI
Capabilities
About Phi-2
Phi-2 is a compact language model by Microsoft endowed with 2.7 billion parameters and part of their Phi series. It shows formidable capabilities in reasoning and language understanding, outshining much larger models, even those with up to 25 times more parameters. Phi-2's training utilized a vast and diverse dataset of 1.4 trillion tokens, incorporating high-quality synthetic data and curated web content to bolster its common sense reasoning and general knowledge. Interestingly, despite lacking fine-tuning via reinforcement learning from human feedback (RLHF), it exhibits enhanced safety features and reduced bias.