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TaiwanTechnology and telecom2024 – ongoing

MediaTek

Phi small language models in Dimensity 9400 chips

Chipmaker MediaTek reports more than 50% faster on-device AI using Microsoft's Phi models

WorkingVendor's case studyVendor ↗

Problem

Phone makers wanted on-device AI such as translation to run with low latency and high accuracy, without a steady internet connection.

Approach

MediaTek used Phi models from the Azure AI Foundry catalog and put Phi-3.5 into its Dimensity 9400 chipsets. It applied speculative decoding in Azure to speed up token processing. Data stays on the device.

Results

>50%Faster AI processing than the previous model (12 tokens per second before)Vendor's case study[1]
30%Greater power efficiency in its chipsVendor's case study[1]

Takeaway

MediaTek reported that using small language models made on-device processing more than 50% faster than the earlier model, which ran at 12 tokens per second. It also claims 30% better power efficiency.

Categories

Business function
IT and R&D
AI technology
Generative AI
Evidence
Vendor's case study

Sources

Source summaries

[1]Microsoft2 May 2025

Microsoft described how MediaTek built small language models into its phone chips. It reported speed and power-efficiency gains.

Full details are in the original sources.

Added 25 Oct 2026 · Updated 25 Oct 2026
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