GPT 4.1 is a flagship large language model optimized for advanced instruction following, real-world software engineering, and long-context reasoning. It supports up to 1.0M of input context for long documents, codebases, and agent workflows.

What is the context length of GPT 4.1?

GPT 4.1 has a recorded input context length of 1,047,576 tokens.

What providers serve GPT 4.1, and can I use it via API?

GPT 4.1 is available through the Phaseo API, with 2 active providers currently recorded. Recorded providers include Abacus, AnyAPI, Azure, DigitalOcean, FastRouter, GitHub Models, Inference, and Kilo Gateway and 10 more.

Does GPT 4.1 support tool calling?

Yes. At least one active provider route for GPT 4.1 currently advertises tool calling support. Provider support can vary, so requests are routed only to compatible routes.

Does GPT 4.1 support structured outputs?

Yes. At least one active provider route for GPT 4.1 currently advertises structured outputs support. Provider support can vary, so requests are routed only to compatible routes.

GPT 4.1 API Pricing — Compare 18 Providers

Providers

API providers, route pricing, availability, and recent reliability signals.

Performance

Latency, throughput, and reliability signals from recent traffic.

Pricing

Effective prices over the last 30 days, with current provider list prices for context.

Benchmarks

Activity

Daily gateway activity over the last 30 days, with current UTC-day pace projection.

Apps Using This Model

Public apps observed in gateway usage for this model.

Model Uptime

Uptime trend for this model over the last 24 hours.

About

Key dates, capabilities, and model metadata.

Subscriptions

Commercial plans and bundled access that currently include this model.

GPT 4.1 API Pricing — Compare 18 Providers | Phaseo

Providers

API providers, route pricing, availability, and recent reliability signals.


OpenAI(Standard)	$2	$8	$0.5	--	--	--

Azure	$2	$8	$0.5	--	--	--

DigitalOcean	$2	$8	$0.5	--	--	--

OpenAI (EU)	--	--	--	--	--	--

Performance

Hourly latency and throughput from the past seven days.

No gateway telemetry in the past 7 days

Hourly charts will appear when this model processes gateway traffic in the selected location.

Pricing

Weighted provider pricing over the last 30 days, with recent route pricing history below.

Effective pricing

Weighted by observed usage over the last 30 days. Every provider with recorded pricing is included.

Weighted input price

Per 1M tokens

Weighted output price

Per 1M tokens

Price history

USD per 1M tokens · 30-day rolling effective prices · exact UTC list changes


OpenAI	--	--	$2	$8	0.0%
Azure	--	--	$2	$8	--
DigitalOcean	--	--	$2	$8	--
OpenAI (EU)	--	--	--	--	--

Benchmarks

Artificial Analysis

Independent evaluations · Index v4.3

View full leaderboard Source: Artificial Analysis

Apps Using This Model

Public apps observed in gateway usage for this model.

Model Uptime

Uptime trend for this model over the last 24 hours.

100.0%

Last 24 hours

No requests observed

Uptime per hour

About

Key dates, capabilities, and model metadata.

Announcement

13 Apr 2025·17 months ago

Release

14 Apr 2025·17 months ago

Deprecation

Not listed

Retirement

Not listed

Parameters

Not listed

License

Proprietary

Training Tokens

Not listed

Input

TextImage

Output

Text

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Previous model

GPT 4o (2024-08-06)

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OpenAI: GPT 4.1

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Apps Using This Model

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About

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OpenAI: GPT 4.1

Providers

Performance

Pricing

Effective pricing

Price history

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Artificial Analysis

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Apps Using This Model

Model Uptime

About

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Frequently Asked Questions

What is GPT 4.1?

What is the context length of GPT 4.1?

How much does GPT 4.1 cost?

What providers serve GPT 4.1, and can I use it via API?

Does GPT 4.1 support tool calling?

Does GPT 4.1 support structured outputs?

What models are related to GPT 4.1?

What benchmark results are available for GPT 4.1?

What modalities does GPT 4.1 support?

When was GPT 4.1 released?

Frequently Asked Questions

What is GPT 4.1?

What is the context length of GPT 4.1?

How much does GPT 4.1 cost?

What providers serve GPT 4.1, and can I use it via API?

Does GPT 4.1 support tool calling?

Does GPT 4.1 support structured outputs?

What models are related to GPT 4.1?

What benchmark results are available for GPT 4.1?

What modalities does GPT 4.1 support?

When was GPT 4.1 released?

Related models

Other models from OpenAI

Providers

Performance

Effective pricing

Price history

Artificial Analysis

Other Benchmarks