Compare Aihub Phi 4 from Microsoft and DeepSeek V4 Flash from DeepSeek on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
Aihub Phi 4
DeepSeek V4 FlashPhi-4 is a state-of-the-art open model based on a combination of synthetic datasets, curated public domain website data, and acquired academic books and QA datasets. The approach aims to ensure that small, efficient models are trained using data focused on high quality and advanced reasoning.
(This model currently points to the older 0423 version; if you need to request the latest version, you can choose the model deepseek-v4-flash-0731)DeepSeek-V4 features an ultra-long context of one million characters and achieves leading performance domestically and in the open-source domain in agent capabilities, world knowledge, and reasoning.
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
Daily traffic served through AIHubMix — how demand for each model is trending.
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
DeepSeek V4 Flash: $0.284/M output tokens; Aihub Phi 4: $0.48/M. Use the cost calculator above to estimate your own workload.
DeepSeek V4 Flash: 1483; Aihub Phi 4: 1307 (LMArena coding leaderboard).
Aihub Phi 4: 0.4s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
Aihub Phi 4 accepts 16,400 and DeepSeek V4 Flash accepts 1,000,000 input tokens. Maximum output per request is 16,400 tokens on Aihub Phi 4 and 384,000 tokens on DeepSeek V4 Flash.
DeepSeek V4 Flash at 66.4 tok/s and Aihub Phi 4 at 46.2 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
Aihub Phi 4 accepts text input; DeepSeek V4 Flash accepts text input and supports tool calling, function calling, structured outputs and thinking.
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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