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Azure OpenAI vs OpenAI API

Two sides of the LLM API decision: through your cloud and model provider. When each fits, what it costs, who moves from one to the other, and what makers who chose it say.

Azure OpenAIThrough your cloudMCP
OpenAI APIModel providerllms.txtIn Lovable, Replit
Ask your AI about this, with this page as the source:ChatGPT ↗Claude ↗Perplexity ↗

Which fits you

Choose Azure OpenAI if
  • OpenAI models inside an Azure account, with regional and EU/US data-zone deployments.

Use it whenYour customers or credits already live on Azure, or you need data kept in a specific region.

Trade-offMore setup than the OpenAI API (Azure resources, deployments per model), and new models can arrive later.

Choose OpenAI API if
  • You want the strongest general models and the widest ecosystem of examples and integrations

Use it whenYou want one account that covers text, images, speech and embeddings, with the most examples to copy from.

Trade-offFrequent model and API changes to keep up with, and no option to run its hosted models elsewhere.

At a glance

Azure OpenAIOpenAI API
Used by23 makers' products · 25 open-source projects734 makers' products · 481 open-source projects
Cost at default usageinput tokens 50 million tokens, output tokens 10 million tokens—$10/mo GPT-6 Luna
Downloads2.2M/wk3.2× vs npm34.1M/wk+61% vs npm
PricingPay per token (standard), or reserved throughput billed hourly (provisioned); batch is 50% off. · paid from Pay per tokenPay per token. · paid from Pay per token
Free tierNoNo
Open sourceNoNo
Incidents, 90 daysfrom its status pageno public status feed25+ (4 major)

What makers say

Makers on using it for LLM API, from Product Hunt and Starter Story interviews, each linked to the source. Products with a page of their own and fuller notes first.

On Azure OpenAI
The Azure OpenAI service was better than the direct OpenAI one for inferene purposes because it was more closer to our servers and had a much better latency
Conva.AI, the makerSep 2026 ↗
OpenAI's API might have temporary failures. Azure's OpenAI service is always the fallback we rely on when the OpenAI's API is unavailable.
Chat Data, the makerSep 2026 ↗
We're using Azure OpenAI to do the document processing, shout out to the Microsoft Startup Hub for their support too.
Parseflow.io, the makerSep 2026 ↗
9 more on the Azure OpenAI page →
On OpenAI API
We use GPT-5.6 to power the Basedash AI data analyst. It's incredibly intelligent and, with the right harness, allows us to rank #1 on BI Bench for solving real-world BI scenarios.
Basedash, the makerSep 2026 ↗
Credit where it’s due: OpenAI’s dev tools made it incredibly easy to prototype and test multiple ideas fast. Still unmatched when you need raw speed, documentation, and flexibility.
Calk AI, the makerSep 2026 ↗
Quven writes subtitles from the audio of a film on the machine of the user. The Whisper models, run locally through whisper.cpp, can do it and the audio never leaves that machine.
Quven, the makerOct 2026 ↗
500 more on the OpenAI API page →

Loved and watch-outs

Themes that recur in makers' words and Hacker News comments, each linked to what it summarises.

Azure OpenAIOn Product Hunt: 5.0★, 19 reviews
OpenAI API
Most loved
  • Its models are strong at code generation, reasoning and creative tasks, often chosen after testing alternatives. PHPH 2PH 3PH 4
  • The API is reliable and well-priced as the foundation for production features. PHPH 2PH 3HN
  • Good docs and a smooth developer experience make integration straightforward. PHPH 2PH 3PH 4
Watch-outs
  • It cut usage on the $200 Pro plan and changed limits, frustrating paying subscribers. HNHN 2HN 3HN 4
  • Model quality shifts between releases, including a quickly replaced GPT-6 and quietly tweaked reasoning levels. HNHN 2HN 3HN 4
  • Models flag or stop midway on legitimate security work. HNHN 2
On Product Hunt: 5.0★, 860 reviews · mentioned most: AI API, AI productivity boost, fast performance · complaints: AI accuracy issues, AI pricing

Who uses each

Azure OpenAI23 makers' products
Basejump AIChat DataConva.AIKuration AIParseflow.ioReach from SalesStream.aiReviewradarSagehood AIHarnessRouterKatalystBalance MinerData Cleaner+11 more
OpenAI API734 makers' products
2dto3D8baseAgentplace.ioAgentXAgnost AIAgree.comAI Context FlowAI Form FillAI Game Master- Dungeon RPGAI Santa ClausAI ShadowingAI Test Engineer by BlinqIO+722 more
Used by both — often one replacing the other, or each for a different part of the product
Basejump AIChat DataConva.AIKuration AISagehood AIHarnessRouterKatalystHotjarSendbird

What makers pair each with

With Azure OpenAI
Hosting
Database
Transactional Email
Frontend Framework
With OpenAI API
Frontend Framework
Transactional Email
Hosting
Payments

Neither quite right?

See the whole LLM API decision →
ClaudeModel providerCoding, long documents and agent-style tool use.vs OpenAI API →
Gemini APIModel providerVery long context and multimodal input, with a free tier to start.vs OpenAI API →
GroqOpen models, hostedVery low-latency inference on open models, for real-time features.vs OpenAI API →
Mistral AIModel providerA European provider whose API covers chat, coding, OCR and speech models.vs OpenAI API →
DeepSeekModel providerLow per-token prices on strong reasoning and coding models, with OpenAI- and Anthropic-format endpoints.vs OpenAI API →
OpenRouterGateway (many providers, one API)Trying many models from many providers with one API key and one bill, without opening an account at each.
LiteLLMGateway (many providers, one API)Running your own OpenAI-compatible proxy in front of your own provider keys, with retries, routing and per-key budgets.