Models

AIHubMix Phi 4 (reasoning) vs DeepSeek V4 Flash

Compare AIHubMix Phi 4 (reasoning) 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.

MicrosoftAIHubMix Phi 4 (reasoning)DeepSeekDeepSeek V4 Flash
Microsoft logo
AIHubMix Phi 4 (reasoning)
Microsoft · text → text

Phi-4-Reasoning is a state-of-the-art open-weight reasoning model finetuned from Phi-4 using supervised fine-tuning on a dataset of chain-of-thought traces and reinforcement learning. The supervised fine-tuning dataset includes a blend of synthetic prompts and high-quality filtered data from public domain websites, focused on math, science, and coding skills as well as alignment data for safety and Responsible AI. The goal of this approach was to ensure that small capable models were trained with data focused on high quality and advanced reasoning.

Input$0.2 /M
Output$0.2 /M
DeepSeek logo
DeepSeek V4 Flash
DeepSeek · text → text

(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.

Input$0.142 /M
Output$0.284 /M
Cache read$0.0284 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

AIHubMix Phi 4 (reasoning)
DeepSeek V4 Flash
Input /M
$0.2
$0.142
Output /M
$0.2
$0.284
Cache read /M
-
$0.0284
Context length
128,000
1,000,000
Max output
4,000
384,000
Time to First Token
-
1.0 s
Throughput
-
66.5 tok/s
Modalities
text
text
Supported Parameters
thinking
toolsfunction callingstructured outputsthinking
API Formats
chat_completions · claude_api
Released
-
April 24, 2026

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

AiHubmix-Phi-4-reasoningdeepseek-v4-flash

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

AiHubmix-Phi-4-reasoningdeepseek-v4-flash

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

Cost calculator

Estimate your monthly bill for the same workload on each model.

DeepSeek V4 Flash
$12.78 /mo
AIHubMix Phi 4 (reasoning)
$15.00 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: AIHubMix Phi 4 (reasoning), DeepSeek V4 Flash?

AIHubMix Phi 4 (reasoning): $0.2/M output tokens; DeepSeek V4 Flash: $0.284/M. Use the cost calculator above to estimate your own workload.

How large is each context window?

AIHubMix Phi 4 (reasoning) accepts 128,000 and DeepSeek V4 Flash accepts 1,000,000 input tokens. Maximum output per request is 4,000 tokens on AIHubMix Phi 4 (reasoning) and 384,000 tokens on DeepSeek V4 Flash.

What inputs and capabilities does each model support?

AIHubMix Phi 4 (reasoning) accepts text input and supports thinking; DeepSeek V4 Flash accepts text input and supports tool calling, function calling, structured outputs and thinking.

Can I call AIHubMix Phi 4 (reasoning) and DeepSeek V4 Flash with the same API key?

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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