Last refreshed 2026-05-19. Next refresh: weekly.
Why use Phi-2 on Cloudflare Workers AI?
Cloudflare Workers AI offers Phi-2 with competitive pricing. Cloudflare is a leading connectivity cloud company that provides a comprehensive suite of cloud-native products and developer tools to enhance web performance, security, and reliability.
Compare Phi-2 across 5 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: @cf/microsoft/phi-2@cf/microsoft/phi-2Request example
@cf/microsoft/phi-2.Gotchas
- Use provider model ID "@cf/microsoft/phi-2", not the LLMReference slug "phi-2".
Compare Phi-2 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Microsoft Foundry | $0.07 | $0.07 |
| Cloudflare Workers AI | — | — |
| Together AI | $0.10 | $0.10 |
| Fireworks AI | $0.10 | $0.10 |
| Replicate API | $0.05 | $0.25 |
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.