How much do GPT-5.2 Pro or Phi-4 cost per month?

For an example workload of 20 million input tokens and 5 million output tokens per month: GPT-5.2 Pro: $1,260. Phi-4: $2.10. These are token-only estimates using the displayed rates, without caching discounts, additional tool charges or taxes. Actual bills depend on usage and endpoint pricing.

Which has a larger context window: GPT-5.2 Pro or Phi-4?

GPT-5.2 Pro: 400K tokens of context; maximum output 128K tokens. Phi-4: 16K tokens of context; maximum output 15K tokens. Context capacity and maximum output are separate limits. A larger context window allows more material in a request but does not guarantee more accurate answers.

Which is better for coding: GPT-5.2 Pro or Phi-4?

GPT-5.2 Pro: Artificial Analysis SciCode not listed. Phi-4: Artificial Analysis SciCode not listed. Compare coding results within the same evaluation, then test representative tasks from your own codebase. A missing score is not a zero, and a single benchmark does not establish the best model for every programming task.

How do Arena Elo, DesignArena, Intelligence Index and MMLU-Pro differ?

These evaluations measure different tasks and use different scales. Arena Elo and DesignArena ratings must remain separate, as must Artificial Analysis Intelligence Index and MMLU-Pro. Compare models within the same evaluation rather than combining scores. Missing results are marked Not listed, not treated as measured zeroes.

Which responds faster: GPT-5.2 Pro or Phi-4?

GPT-5.2 Pro: Artificial Analysis output speed not listed; time to first token not listed. Phi-4: Artificial Analysis output speed 39 tokens/s; time to first token 2.59 seconds. Output speed measures generation throughput, while time to first token measures the initial wait. Real-world latency also depends on the API provider, request size and load; missing measurements cannot establish a speed winner.

Do GPT-5.2 Pro or Phi-4 support images, audio or video?

GPT-5.2 Pro: listed input formats: image, text, file; output formats: text. Phi-4: listed input formats: text; output formats: text. Input and output support are different capabilities: accepting an image does not mean a model generates images. Confirm formats and file limits for the endpoint you plan to use.

Do GPT-5.2 Pro or Phi-4 support tool calling and structured outputs?

GPT-5.2 Pro: listed features: Function calling, Structured outputs, JSON mode, Reasoning, Deterministic seed. Phi-4: listed features: Structured outputs, JSON mode, Deterministic seed. Only recorded capabilities are shown; an unlisted feature is not proof that it is unsupported. Availability can vary by API provider, so confirm tool calling and JSON schema support for your chosen endpoint.

Can prompt caching reduce the cost of GPT-5.2 Pro or Phi-4?

GPT-5.2 Pro: cached input price not listed. Phi-4: cached input price not listed. Caching may reduce charges for eligible repeated input when supported by the endpoint. A listed cached rate does not guarantee every request qualifies; cache duration, minimum token counts and any write charges depend on the provider.

Are GPT-5.2 Pro or Phi-4 available through an API?

GPT-5.2 Pro: catalog status active; API identifier gpt-5.2-pro; listed API hosts OpenAI. Phi-4: catalog status active; API identifier phi-4; listed API hosts DeepInfra. Catalog status is not a live availability check. Before integrating, verify the provider's documentation, endpoint access, rate limits, regional availability and data-handling terms.

Models, measured side by side

GPT-5.2 Pro vs Phi-4

Compare GPT-5.2 Pro, Phi-4 by token pricing, context length, benchmark results, speed and tool support.

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Monthly workload

Input· million tokensOutput· million tokens

Monthly cost breakdown

InputOutput

GPT-5.2 Pro

$1,260 / mo

Phi-4

$2.10 / mo

Performance comparison

GPT-5.2 Pro

Not listed

Phi-4

5.9

Overview

Overview	GPT-5.2 Pro	Phi-4
Provider	OpenAI	Microsoft
Released	2025-12	2024-12
Status	Active	Active
Input formats	imagetextfile	text
Output formats	text	text

Provider

GPT-5.2 Pro: OpenAI
Phi-4: Microsoft

Released

GPT-5.2 Pro: 2025-12
Phi-4: 2024-12

Status

GPT-5.2 Pro: Active
Phi-4: Active

Input formats

GPT-5.2 Pro: imagetextfile
Phi-4: text

Output formats

GPT-5.2 Pro: text
Phi-4: text

Pricing & capacity

Pricing & capacity	GPT-5.2 Pro	Phi-4
Input / 1M tokens	$21	$0.07
Output / 1M tokens	$168	$0.14
Monthly cost	$1,260	$2.10
Context window	400K	16K
Maximum output	128K	15K

Input / 1M tokens

GPT-5.2 Pro: $21
Phi-4: $0.07

Output / 1M tokens

GPT-5.2 Pro: $168
Phi-4: $0.14

Monthly cost

GPT-5.2 Pro: $1,260
Phi-4: $2.10

Context window

GPT-5.2 Pro: 400K
Phi-4: 16K

Maximum output

GPT-5.2 Pro: 128K
Phi-4: 15K

Benchmarks & performance

Benchmarks & performance	GPT-5.2 Pro	Phi-4
Arena Elo	1,255	1,123
MMLU-Pro	82.8%	60.7%
Intelligence Index	Not listed	5.9
GPQA	Not listed	57.5%
Humanity’s Last Exam	Not listed	3.8%
Output speed	Not listed	39 tokens/s
Time to first token	Not listed	2.59 s

Arena Elo

GPT-5.2 Pro: 1,255
Phi-4: 1,123

MMLU-Pro

GPT-5.2 Pro: 82.8%
Phi-4: 60.7%

Intelligence Index

GPT-5.2 Pro: Not listed
Phi-4: 5.9

GPQA

GPT-5.2 Pro: Not listed
Phi-4: 57.5%

Humanity’s Last Exam

GPT-5.2 Pro: Not listed
Phi-4: 3.8%

Output speed

GPT-5.2 Pro: Not listed
Phi-4: 39 tokens/s

Time to first token

GPT-5.2 Pro: Not listed
Phi-4: 2.59 s

Tools & features

Tools & features	GPT-5.2 Pro	Phi-4
Function calling	Supported	Not listed
Structured outputs	Supported	Supported
JSON mode	Supported	Supported
Reasoning	Supported	Not listed
Deterministic seed	Supported	Supported

Function calling

GPT-5.2 Pro: Supported
Phi-4: Not listed

Structured outputs

GPT-5.2 Pro: Supported
Phi-4: Supported

JSON mode

GPT-5.2 Pro: Supported
Phi-4: Supported

Reasoning

GPT-5.2 Pro: Supported
Phi-4: Not listed

Deterministic seed

GPT-5.2 Pro: Supported
Phi-4: Supported

API & availability

API & availability	GPT-5.2 Pro	Phi-4
API identifier	`gpt-5.2-pro`	`phi-4`
API providers	OpenAI	DeepInfra
Knowledge cutoff	Not listed	2024-06-30
Prices checked	Oct 8, 2026	Oct 8, 2026

API identifier

GPT-5.2 Pro: gpt-5.2-pro
Phi-4: phi-4

API providers

GPT-5.2 Pro: OpenAI
Phi-4: DeepInfra

Knowledge cutoff

GPT-5.2 Pro: Not listed
Phi-4: 2024-06-30

Prices checked

GPT-5.2 Pro: Oct 8, 2026
Phi-4: Oct 8, 2026

About the models

GPT-5.2 Pro

GPT-5.2 with extra compute for the most demanding problems. No cached-input discount.

Full pricing & details

Phi-4

14B small language model, great for edge and cheap tasks.

Full pricing & details

Comparison FAQ

GPT-5.2 Pro: $21 input and $168 output per million tokens. Phi-4: $0.07 input and $0.14 output per million tokens. The cheaper choice depends on your input-to-output ratio; a model can have a lower input rate but a higher output rate.

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About the models

GPT-5.2 Pro

Phi-4

Comparison FAQ

Which costs less: GPT-5.2 Pro or Phi-4?

How much do GPT-5.2 Pro or Phi-4 cost per month?

Which has a larger context window: GPT-5.2 Pro or Phi-4?

Which is better for coding: GPT-5.2 Pro or Phi-4?

How do Arena Elo, DesignArena, Intelligence Index and MMLU-Pro differ?

Which responds faster: GPT-5.2 Pro or Phi-4?

Do GPT-5.2 Pro or Phi-4 support images, audio or video?

Do GPT-5.2 Pro or Phi-4 support tool calling and structured outputs?

Can prompt caching reduce the cost of GPT-5.2 Pro or Phi-4?

Are GPT-5.2 Pro or Phi-4 available through an API?

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