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Phi-3-medium-128k-instruct

14B dense model with a 128K context window, MIT licensed.

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About

Phi-3-medium-128k-instruct is Microsoft's 14-billion-parameter instruction-tuned model with a 128,000-token context window. It was trained on 4.8 trillion tokens including synthetic textbook-like data, using supervised fine-tuning and direct preference optimization.

The model excels at reasoning, math, code, and long-context tasks, punching near Llama 3 70B levels on MMLU-Pro at release. It is released under the MIT license.

Specs

Context window

Pricing

Free quota

API access

Weights

Open weights

Released

May 21, 2024

Benchmarks

Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.

Use cases

reasoninglong-contextmathcodechat-assistant

Trust score — 8/10

/10 trustVerified

Scored 8/10 (verified tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 134; Trending score 80/100 from researcher assessment.

Sources