How much do GPT-4.1 or GPT-4o cost per month?

For an example workload of 20 million input tokens and 5 million output tokens per month: GPT-4.1: $80. GPT-4o: $100. 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-4.1 or GPT-4o?

GPT-4.1: 1M tokens of context; maximum output 33K tokens. GPT-4o: 128K tokens of context; maximum output 16K 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-4.1 or GPT-4o?

GPT-4.1: Artificial Analysis SciCode not listed. GPT-4o: 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-4.1 or GPT-4o?

GPT-4.1: Artificial Analysis output speed 166 tokens/s; time to first token 0.83 seconds. GPT-4o: Artificial Analysis output speed 145 tokens/s; time to first token 0.84 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-4.1 or GPT-4o support images, audio or video?

GPT-4.1: listed input formats: image, text, file; output formats: text. GPT-4o: listed input formats: text, image, file; 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-4.1 or GPT-4o support tool calling and structured outputs?

GPT-4.1: listed features: Function calling, Structured outputs, JSON mode, Deterministic seed, Prompt caching. GPT-4o: listed features: Function calling, Structured outputs, JSON mode, Built-in web search, Log probabilities, Deterministic seed, Prompt caching. 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-4.1 or GPT-4o?

GPT-4.1: cached input price $0.50 per million tokens. GPT-4o: cached input price $1.25 per million tokens. 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-4.1 or GPT-4o available through an API?

GPT-4.1: catalog status active; API identifier gpt-4.1; listed API hosts Azure, OpenAI, Azure. GPT-4o: catalog status active; API identifier gpt-4o; listed API hosts Azure, OpenAI. 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-4.1 vs GPT-4o

Compare GPT-4.1, GPT-4o 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-4.1

$80 / mo

GPT-4o

$100 / mo

Performance comparison

GPT-4.1

12.7

GPT-4o

8.4

Overview

Overview	GPT-4.1	GPT-4o
Provider	OpenAI	OpenAI
Released	2025-04	2024-05
Status	Active	Active
Input formats	imagetextfile	textimagefile
Output formats	text	text

Provider

GPT-4.1: OpenAI
GPT-4o: OpenAI

Released

GPT-4.1: 2025-04
GPT-4o: 2024-05

Status

GPT-4.1: Active
GPT-4o: Active

Input formats

GPT-4.1: imagetextfile
GPT-4o: textimagefile

Output formats

GPT-4.1: text
GPT-4o: text

Pricing & capacity

Pricing & capacity	GPT-4.1	GPT-4o
Input / 1M tokens	$2.00	$2.50
Output / 1M tokens	$8.00	$10
Cached input / 1M	$0.50	$1.25
Monthly cost	$80	$100
Context window	1M	128K
Maximum output	33K	16K

Input / 1M tokens

GPT-4.1: $2.00
GPT-4o: $2.50

Output / 1M tokens

GPT-4.1: $8.00
GPT-4o: $10

Cached input / 1M

GPT-4.1: $0.50
GPT-4o: $1.25

Monthly cost

GPT-4.1: $80
GPT-4o: $100

Context window

GPT-4.1: 1M
GPT-4o: 128K

Maximum output

GPT-4.1: 33K
GPT-4o: 16K

Benchmarks & performance

Benchmarks & performance	GPT-4.1	GPT-4o
Arena Elo	1,200	1,178
MMLU-Pro	73.6%	69.9%
Intelligence Index	12.7	8.4
GPQA	66.6%	54.3%
Humanity’s Last Exam	4.2%	2.4%
SciCode	Not listed	Not listed
Output speed	166 tokens/s	145 tokens/s
Time to first token	0.83 s	0.84 s
DesignArena rating	1,029	864
DesignArena win rate	50.9%	34.8%

Arena Elo

GPT-4.1: 1,200
GPT-4o: 1,178

MMLU-Pro

GPT-4.1: 73.6%
GPT-4o: 69.9%

Intelligence Index

GPT-4.1: 12.7
GPT-4o: 8.4

GPQA

GPT-4.1: 66.6%
GPT-4o: 54.3%

Humanity’s Last Exam

GPT-4.1: 4.2%
GPT-4o: 2.4%

SciCode

GPT-4.1: Not listed
GPT-4o: Not listed

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Tools & features

Tools & features	GPT-4.1	GPT-4o
Function calling	Supported	Supported
Structured outputs	Supported	Supported
JSON mode	Supported	Supported
Reasoning	Not listed	Not listed
Built-in web search	Not listed	Supported
Log probabilities	Not listed	Supported
Deterministic seed	Supported	Supported
Parallel tool calls	Not listed	Not listed
Prompt caching	Supported	Supported

Function calling

GPT-4.1: Supported
GPT-4o: Supported

Structured outputs

GPT-4.1: Supported
GPT-4o: Supported

JSON mode

GPT-4.1: Supported
GPT-4o: Supported

Reasoning

GPT-4.1: Not listed
GPT-4o: Not listed

Built-in web search

GPT-4.1: Not listed
GPT-4o: Supported

Log probabilities

GPT-4.1: Not listed
GPT-4o: Supported

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API & availability

API & availability	GPT-4.1	GPT-4o
API identifier	`gpt-4.1`	`gpt-4o`
API providers	Azure, OpenAI, Azure	Azure, OpenAI
Knowledge cutoff	2024-06-30	2023-10-31
Prices checked	Oct 8, 2026	Oct 8, 2026

API identifier

GPT-4.1: gpt-4.1
GPT-4o: gpt-4o

API providers

GPT-4.1: Azure, OpenAI, Azure
GPT-4o: Azure, OpenAI

Knowledge cutoff

GPT-4.1: 2024-06-30
GPT-4o: 2023-10-31

Prices checked

GPT-4.1: Oct 8, 2026
GPT-4o: Oct 8, 2026

About the models

GPT-4.1

Non-reasoning GPT-4.1 with a 1M-token context window, strong at instruction following and coding.

Full pricing & details

GPT-4o

Multimodal GPT-4o "omni" model for text and image input.

Full pricing & details

Comparison FAQ

GPT-4.1: $2.00 input and $8.00 output per million tokens. GPT-4o: $2.50 input and $10 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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Monthly workload

Monthly cost breakdown

Performance comparison

Overview

Pricing & capacity

Benchmarks & performance

Tools & features

API & availability

About the models

GPT-4.1

GPT-4o

Comparison FAQ

Which costs less: GPT-4.1 or GPT-4o?

How much do GPT-4.1 or GPT-4o cost per month?

Which has a larger context window: GPT-4.1 or GPT-4o?

Which is better for coding: GPT-4.1 or GPT-4o?

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

Which responds faster: GPT-4.1 or GPT-4o?

Do GPT-4.1 or GPT-4o support images, audio or video?

Do GPT-4.1 or GPT-4o support tool calling and structured outputs?

Can prompt caching reduce the cost of GPT-4.1 or GPT-4o?

Are GPT-4.1 or GPT-4o available through an API?

Popular model comparisons