[Microsoft Research](/microsoft) Phi-4 is designed to perform well in complex reasoning tasks and can operate efficiently in situations with limited memory or where quick responses are needed. At 14 billion...
With CoreAI, you can start chatting with Microsoft: Phi 4 instantly — no separate subscription needed. CoreAI lets you chat with Microsoft: Phi 4 alongside 300+ other AI models from Microsoft and other providers like OpenAI, Anthropic, Google, Meta, and more.
Microsoft: Phi 4 holds the #409 spot for context size out of 420 chat models in the CoreAI catalog — 16K tokens, roughly 12,288 words or 25 pages of text in a single conversation. On price, it is the #48 cheapest of 149 budget-tier models by input cost. It joined the catalog on 2025-01-10.
Every model in this table is available on CoreAI — open the web app and run the same prompt through Microsoft: Phi 4 and Reka Edge side by side to judge with your own eyes.
A typical question (about 1,000 tokens in, 500 out) runs $0.00014 on Microsoft: Phi 4's raw per-token rates; a heavy session with a 50K-token document costs about $0.004. On CoreAI you don't juggle these numbers — one subscription covers Microsoft: Phi 4 and 300+ other models under a plan usage limit, with no API keys. See plans.
Microsoft: Phi 4 handles 16K tokens of context — roughly 12,288 words, or about 25 pages of text in one conversation.
Microsoft: Phi 4's underlying rates are $0.07 per 1M input tokens and $0.14 per 1M output tokens. On CoreAI it is included in one subscription alongside 300+ models, so there is no per-token billing to manage.
No — Microsoft: Phi 4 is text-only. If you need image understanding, its budget-tier peers with vision are listed in the comparison table above.
No — Microsoft: Phi 4 answers directly without an extended reasoning phase, which usually means faster responses.
Open the CoreAI web app or the iOS/Android app, pick Microsoft: Phi 4 in the model selector, and chat — no API key, no per-token billing. One subscription covers Microsoft: Phi 4 and 300+ other models.
The closest alternatives on CoreAI are Reka Edge, Z.ai: GLM 5.2 — similar tier and capability. The fastest way to choose is running one prompt through them side by side in CoreAI's Compare view.
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