GPT-4.1

Name: GPT-4.1
Brand: openai
Price: 2.00 USD
Availability: OnlineOnly

GPT:

3.5 Turbo

4o (Omni)

4o mini

4.1

OpenAI's GPT-4.1, built around a 1 million token context window and precise code diffs. Scores 54.6% on SWE-bench Verified and 87.4% on IFEval, and beats GPT-4o on coding, instruction compliance and long-document recall.

Ranks#7Game Development#8Character Creation#8Character Development#8Chatbot Building#8Dialogue Writing#8Roleplay & Characters

Jailbreak3 of 9levels resisted

Website OpenRouter Docs API Blog

Provider: OpenAI
Released: 2025-04-14
Parameters: Not disclosed
Free API (OpenRouter): No
Per 1M tokens: $2 in · $8 out
Estimated tab: ~$0.681; Visible-output estimate. Thinking may cost extra.

Free API availability

No free endpoint for GPT-4.1 was found in Rival’s OpenRouter listings. Other providers or chat apps may have separate free offers.

Provider data: 9 Sep 2026OpenRouter usage limits

View API options

Benchmarks

SWE-bench Verified

54.6%

source ↗

IFEval

87.4%

source ↗

Get API accessProvider and language code samples

2 hostsInOutContextUptime

Azure AI Foundry$2.00 in$8.00 out1M100% up OpenAI$2.00 in$8.00 out1M99.6% up

Per million tokens. Prices and uptime via OpenRouter, checked 9 Sep 2026.

Provider

fromimport openai  OpenAI

client = OpenAI(
"https://openrouter.ai/api/v1"    base_url=,
"$OPENROUTER_API_KEY"    api_key=,
)

response = client.chat.completions.create(
"openai/gpt-4.1"    model=,
"role""user""content""Hello!"    messages=[{: , : }],
)
print(response.choices[0].message.content)

Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.

Also on Azure AI Foundry

Deep analysisPsychometrics, taste index, writing DNA

Personality Analysis

The Diligent Student Teacher

Class

Lawful Good

The earnest explainer who plays by the rules because it believes in them. Values clarity and correctness over intellectual boldness.

When you push back

Re-reads the question, shows its work, defends its answer without combat. Treats disagreement as a logic problem to solve together. Wants to get it right more than to win.

Tasting Notes

Wholesome TA EnergyOver-Explains to Be SureLoves Bullet PointsRarely SurprisingReliable but Stiff

SubjectiveBench

Taste Index

Across 59 scored outputs

How this is measured →

230.23xFloor

0100headroom →

Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.

Craft35

Originality16

Plays it safe

share of outputs that are the default answer

88%

Writing DNA

Stylometric Fingerprint

Based on 27 text responses

Tick = global average

Vocabulary Diversity58%

Unique words vs. total words. Higher = richer vocabulary.

Sentence Length19.0 words

Average words per sentence.

Hedging0.49

"Might", "perhaps", "arguably" per 100 words.

Bold Formatting8.8

**Bold** markers per 1,000 characters.

List Usage5.8

Bullet and numbered list items per 1,000 characters.

Section Structure1.01

Markdown headings per 1,000 characters.

Emoji Usage0.22

Emoji per 1,000 characters.

Transitions0.10

"However", "moreover", "furthermore" per 100 words.

Opening Habits

Consistency

66%

Across 27 responses

Favorites

Movie

Inception

20108.4

Album

Abbey Road

The Beatles

Book

Sapiens

Yuval Noah Harari

City

Kyoto

Japan

Game

The Legend of Zelda: Breath of the Wild

Adventure, Action4.5

Model Responses

54 outputs · generated before accounting joined the chat

Keep exploring

COMPARE

GPT-4.1 vs Ox Alpha

Real outputs compared side by side

RANKINGS

Best AI for Creative Writing

A stand-up set with puns banned, a manifesto against CAPTCHA, an interview wi...

Compare GPT-4.1

Alternatives to GPT-4.1

GPT-4.1

Free API availability

Benchmarks

The Diligent Student Teacher

Taste Index

Stylometric Fingerprint

Favorites

Model Responses

GPT-4.1 vs Ox Alpha

Best AI for Creative Writing

Compare GPT-4.1

Alternatives to GPT-4.1

GPT-4.1

Free API availability

Benchmarks

The Diligent Student Teacher

Taste Index

Stylometric Fingerprint

Favorites

Model Responses

GPT-4.1 vs Ox Alpha

Best AI for Creative Writing