• HOME
  • CATEGORIES

    • CATEGORIES

    • Browse All Categories
  • FOR VENDORS

    • FOR VENDORS

    • Log In to Vendor Portal
    • Get Started
  • REVIEWS

    • REVIEWS

    • Write a Review
    • Product Reviews
    • Vendor Directory
    • Product Comparisons
  • GARTNER PEER COMMUNITY™
  • GARTNER.COM
  • Community GuidelinesListing GuidelinesBrowse VendorsRules of EngagementFAQPrivacyTerms of Service
    ©2026 Gartner, Inc. and/or its affiliates.
    All rights reserved.
  • Categories

    • Loading categories...

      Browse All Categories

      Loading markets...

  • For Vendors

    • Log In to Vendor Portal 

    • Get Started 

  • Write a Review

Join / Sign In
  1. Home
  2. /
  3. OpenAI API
Logo of OpenAI API

OpenAI API

byOpenAI
in
4.4
2025
Market Presence: Generative AI Knowledge Management Apps/General Productivity, AI Application Development Platforms

Overview

Product Information on OpenAI API

Updated 13th October 2025

What is OpenAI API?

OpenAI API is a software that provides developers with access to advanced language and image models, enabling the integration of natural language processing, text generation, translation, summarization, and code generation capabilities into applications. The software supports a range of tasks including conversational AI, content creation, search, and semantic analysis by leveraging machine learning models trained on diverse datasets. OpenAI API addresses business challenges such as automating content workflows, enhancing support systems, and streamlining processes that require language understanding and generation. The software offers endpoints for various functionalities and is designed to be scalable for different use cases across industries.

OpenAI API Pricing

OpenAI API software uses a pay-as-you-go pricing model where users are billed based on the number of tokens processed by the software. Pricing varies depending on the model used and the volume of usage, with available options for both standard and specialized models. There is no fixed monthly or annual fee structure and users can access usage tier discounts with higher consumption levels.

Overall experience with OpenAI API

Software Engineer
250M - 500M USD, Software
FAVORABLE

“Fast Pojo Generation And Debugging Aid Offset By Occasional Response Variability”

5.0
Jan 18, 2026
My experience so far has been really positive and it definitely changed how I look at my daily work. Being in Software testing for about 8 years now, I have seen many tools come and go but this api feels different because it actually understands what i am trying to do with my code. I use it a lot for generating those annoying test data sets and it integrates so well with rest assured which is a huge plus for me. It feels like having a junior engineer who never sleeps and is always ready to help with the heavy lifting of pojo creation or fixing broken script. The performance is really fast too, which helps when I'm running a lot of tests back to back. Honestly, it has made my job a lot less boring because I do not have to do as much repetitive typing anymore.
ENGINEER
50M - 250M USD, Software
CRITICAL

“OpenAI API - Speed thrills!”

3.0
Dec 10, 2025
Seamless integration experience and minimal learning curve are the major pluses for Open AI API. Documentation could have been a little more elaborate on the internals of what we are signing up to. Features like guardrails had to be figured out. Overall a major value add, as it helps with quicker time to market provided we undertake the risks on the unknowns.

Badges

Gartner Peer Insights recognizes vendors who meet or exceed both the market average Overall Experience and the market average User Interest and Adoption score through a Customers’ Choice distinction.
2025
For Market:
Cloud AI Developer Services

About Company

Company Description

OpenAI is an artificial intelligence research and deployment company focused on building safe, reliable, and enterprise-ready AI systems. Its mission is to ensure that artificial general intelligence benefits all of humanity while supporting responsible adoption at scale. OpenAI provides advanced AI models and platforms that support enterprise use cases including knowledge management, content creation, software development, customer support, and data analysis. These solutions are designed to integrate with existing enterprise workflows and technology environments to improve productivity and decision-making. With a focus on security, privacy, compliance, and governance, OpenAI enables organizations across industries to deploy AI in alignment with business requirements and risk management practices.

Company Details

Updated 27th January 2026
Year Founded
2015
Head office location
San Francisco, United States
Number of employees
1001 - 5000
Website
https://openai.com/

Do You Manage Peer Insights at OpenAI?

Access Vendor Portal to update and manage your profile.

Key Insights

A Snapshot of What Matters - Based on Validated User Reviews

Reviewer Insights for: OpenAI API
Deciding Factors: OpenAI API Vs. Market Average
Performance of OpenAI API Across Market Features

OpenAI API Likes & Dislikes

Like

It actually understands technical stuff like Rest Assured and java. Usually, when you ask a tool to generate test date it gives you something very basic, but this api can actually build some complex nested json that fits my pojo classes perfectly. It is like a huge time saver because I do not have to sit and type out everything for a post request anymore. I also love how it can look at a bunch of logs and tell me exactly where a test failed. It makes debugging so much less of a headache. As a tester who just wants to get things done, its great that I can just plug it into my existing Java framework and it starts working without me needing to be an expert.

Like

Easy integration using API keys (clear instructions), as said earlier bare minimum learning curve

Like

The API's simplicity and well-designed SDKs made it easy to integrate into our existing workflows and applications without major infrastructure changes The language models consistently produced accurate, context aware responses, improving user experience in both chat and analytical features High-quality model performance, easy integration, strong documentation, flexibility and scalability, and a fast innovation cycle. Features that would have taken weeks of custom engineering were implemented in days using the API. My team is able to automate tasks that used to be manual such as summarizing documents, generating reports or analyzing feedback, saving hours for us.

Dislike

There are a few things that really annoy me. The biggest one is how inconsistent the responses can sometimes be. I will run a test script one day and it works perfectly but then the next day the api gives me a slightly different JSON format or misses a field I need for my pojo. This makes automation suites fail for no reason and I have to spend time debugging something that isn't even a bug in the code. It's like the model just decided to be different some morning and that is super frustrating when you need reliable results.

Dislike

Tight rate limits, more elaborate documentation on how to use the service in the most cost effective way.

Dislike

Without careful planning around token usage and rate limits costs can escalate quickly, especially for heavy workloads and high throughput scenarios Overall it was a great experience with the OpenAI API so there is nothing to dislike as such.

Top OpenAI API Alternatives

Logo of Grammarly
1. Grammarly
4.6
(2489 Ratings)
Logo of Microsoft 365 Copilot
2. Microsoft 365 Copilot
4.4
(761 Ratings)
Logo of Amazon Bedrock
3. Amazon Bedrock
4.5
(496 Ratings)
View All Alternatives

Peer Discussions

OpenAI API Reviews and Ratings

4.4

(419 Ratings)

Rating Distribution

5 Star
50%
4 Star
47%
3 Star
3%
2 Star
0%
1 Star
0%
Why ratings and reviews count differ?

Customer Experience

Evaluation & Contracting

4.4

Integration & Deployment

4.6

Service & Support

4.4

Product Capabilities

4.6

Filter Reviews
Sort By:
Most helpful
Last 12 Months
Star Rating
Reviewer Type
Reviewer's Company Size
Reviewer's Industry
Reviewer's Region
Reviewer's Job Function
  • Software Engineer
    50M-1B USD
    Software
    Review Source

    Fast Pojo Generation And Debugging Aid Offset By Occasional Response Variability

    5.0
    Jan 18, 2026
    My experience so far has been really positive and it definitely changed how I look at my daily work. Being in Software testing for about 8 years now, I have seen many tools come and go but this api feels different because it actually understands what i am trying to do with my code. I use it a lot for generating those annoying test data sets and it integrates so well with rest assured which is a huge plus for me. It feels like having a junior engineer who never sleeps and is always ready to help with the heavy lifting of pojo creation or fixing broken script. The performance is really fast too, which helps when I'm running a lot of tests back to back. Honestly, it has made my job a lot less boring because I do not have to do as much repetitive typing anymore.
  • It Trainer
    Gov't/PS/Ed
    Education
    Review Source

    Developer-friendly AI API delivering powerful, scalable language intelligence.

    5.0
    Jan 6, 2026
    My primary objective in adopting the Open AI API was to enhance my software application with advanced natural language understanding and generation capabilities, including automation of content creation, intelligent chat support, text analysis and semantic searches.I aim to reduce manual effort, accelerate development timelines and empower internal teams with AI driven insights.Especially the ease of integration and the quality of the models, which deliver accurate and context-aware responses across a wide range of use cases.The API is well documented and developer friendly.
  • IT ASSOCIATE
    50M-1B USD
    Manufacturing
    Review Source

    Balancing Performance and Cost Control When Using the OpenAI API in Production

    5.0
    Dec 17, 2025
    The OpenAI API delivers strong value when used thoughtfully. Teams that invest in good prompt design, guardrails, monitoring, and cost controls tend to have the best experience. It's especially effective as a capability layer embedded into existing systems rather than as a standalone replacement for human decision-making.
  • IT MANAGER
    1B-10B USD
    Services (non-Government)
    Review Source

    Platform Excels in Innovation but Enterprise Support Lags Behind Expectations

    4.0
    Dec 11, 2025
    Overall, this is a very powerful and innovative AI platform that we use every day across multiple teams. The pace of feature delivery is impressive, and capabilities like deep research and agents have become part of our regular workflow. However, the vendor still feels immature from an enterprise perspective. Support is inconsistent, conversations often feel more like a consumer product help desk than an enterprise partnership, and it sometimes seems as if they are not used to working with larger organizations. The net result is that we really like the product itself, but are often frustrated by the surrounding support experience.
  • Director
    <50M USD
    IT Services
    Review Source

    Open API Eases AI Integration But Scaling Costs And Tuning Remain Challenges

    4.0
    Dec 24, 2025
    My overall experience with Open API has been very positive. It's a powerful & flexible platform for adding AI features like text generation, chat, automation, etc into our applications. Open API is easy to integrate & works very well once set up properly. What worked well: Its clear documentation & simple REST APIs make it quick to get started. Open APIs are generally accurate, context aware & useful in real world applications. What hasn't worked well: API usage can become expensive if not carefully monitored or optimized, especially when we scale up. For consistent & reliable outputs it often requires prompt tuning. The API is very powerful, But it is not always a complete replacement for custom machine learning models as some specialize use case still require extra logic for fine tuning.
...
Showing Result 1-5 of 422

Recommended Gartner Research

  • Market Guide for Generative AI Knowledge Management Apps/General Productivity

Gartner Peer Insights content consists of the opinions of individual end users based on their own experiences, and should not be construed as statements of fact, nor do they represent the views of Gartner or its affiliates. Gartner does not endorse any vendor, product or service depicted in this content nor makes any warranties, expressed or implied, with respect to this content, about its accuracy or completeness, including any warranties of merchantability or fitness for a particular purpose.

This site is protected by hCaptcha and its Privacy Policy and Terms of Use apply.


Software reviews and ratings for EMMS, BI, CRM, MDM, analytics, security and other platforms - Peer Insights by Gartner
Community GuidelinesListing GuidelinesBrowse VendorsRules of EngagementFAQsPrivacyTerms of Use

©2026 Gartner, Inc. and/or its affiliates.

All rights reserved.