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It's a split decision.
Choose OpenAI if developers on your team need ChatGPT alongside an API platform, or if a free individual plan matters. Choose MiniMax if your workload fits its speech or video packages, where the pricing page lists monthly points and request-per-minute limits. Neither homepage specifies SDKs, API protocols, self-hosting terms or data export. Compare the relevant API documentation and contract terms before committing: the published ChatGPT subscription prices are not API rates, and MiniMax’s listed packages cover audio and video.
01Side by side
| OpenAI | MiniMax | |
|---|---|---|
| Pricing model | ChatGPT subscriptions; API usage rates not listed | Audio/video point packages; audio starts at $5 monthly |
| Free tier | $0 Free plan with limited daily quotas | No free plan listed |
| Open source and licence | Homepage does not identify an open-source licence | H3 is open-weight; licence terms are not identified |
| API and SDKs | API Platform; SDKs and protocols not specified | API platform; SDKs and protocols not specified |
| Integrations | Zapier customer story; no integrations listed | No third-party integrations named |
| Deployment model | Web products and API Platform | Web products and API platform |
| Platforms | Web | Web |
| Limits and scaling | ChatGPT quotas; Plus has rolling usage caps | Audio 10–800 RPM; video 20–50 RPM |
OpenAI Choose OpenAI if
- Choose OpenAI if a free individual ChatGPT plan matters.
- Choose OpenAI if your users need ChatGPT and an API platform.
- Choose OpenAI if ChatGPT Business seat pricing fits your team.
MiniMax Choose MiniMax if
- Choose MiniMax if your workload fits speech API point packages.
- Choose MiniMax if you need its listed video generation packages.
- Choose MiniMax if an open-weight multimodal model is relevant.
02Pricing at real usage
OpenAI lists ChatGPT Free at $0 per month, with limited daily quotas. Individual paid plans start at $8 per month for Go; Plus is $20, and Pro plans are $100, $200 or $500 monthly. ChatGPT Business Standard costs $25 per user monthly or $20 per user annually, with a two-user minimum. These are ChatGPT subscription prices, not published API rates.
MiniMax lists no free plan. Its Audio Starter package costs $5 monthly or $4 per month with annual billing, and includes 100,000 audio points and 10 RPM. Audio tiers rise to $999 monthly for Business, with 20 million points and 800 RPM. Video packages start at $1,000 for one month and 3,760 points; Video Business is $6,000 for 26,780 points. These are modality packages, not a general model-token price. Estimate API spend from the package limits that match your workload.
03API, SDKs and integration
Both companies list an API platform for developers. OpenAI also presents ChatGPT and ChatGPT Business as products, while MiniMax lists MiniMax Code, MiniMax Design and model families for text, video, speech and music. The homepages do not describe API protocols, endpoint formats, authentication, SDKs, supported programming languages, CLI commands or API documentation. Check the relevant API docs before choosing a client library or estimating integration work.
OpenAI’s homepage links to a Zapier customer story, but does not list a supported integration catalog. MiniMax names no third-party integrations on its homepage. Neither provides a basis here for assuming a particular framework, tool-calling format or drop-in compatibility with another provider. For a production integration, verify model names, request and response schemas, quotas, error behavior and versioning in the API documentation. Treat MiniMax’s listed audio and video RPM figures as plan limits, not as a full description of API throughput or concurrency.
04Open source, self-hosting and lock-in
MiniMax describes H3 as an open-weight multimodal model. That label alone does not establish an open-source licence or grant permission for a particular deployment; check the model’s licence terms before redistributing weights or using them commercially. OpenAI’s homepage does not identify an open-source licence. Neither homepage describes self-hosting options or data-export procedures.
Both companies present vendor API platforms, so a service built around either API can depend on its model names, request formats and product limits. Keep provider-specific calls behind an internal interface and store prompts, outputs and application data in formats your team controls. Before adopting either platform, ask about export rights, retention, model-version changes, and any self-hosted deployment options. Migration effort will depend on how much application logic relies on provider-specific behavior.
Questions people ask
Does OpenAI or MiniMax offer a free developer API tier?
The listed OpenAI Free plan is a ChatGPT plan, with limited daily quotas; it is not stated as free API usage. MiniMax’s pricing data lists no free plan. Check each API’s current pricing and account terms before budgeting for development or production traffic.
How do OpenAI and MiniMax API prices compare?
The listed OpenAI prices cover ChatGPT subscriptions, not API usage rates. MiniMax lists paid audio packages from $5 monthly and video packages from $1,000 for one month. These packages use points and RPM limits, so they are not directly comparable to an unspecified API rate.
Can developers self-host MiniMax H3 or OpenAI models?
MiniMax calls H3 an open-weight model, but that does not by itself establish self-hosting rights; review its licence. OpenAI’s homepage does not describe self-hosting. Ask each vendor about deployment rights and requirements before designing around an on-premises or private-cloud setup.
Which platform publishes clearer API rate limits?
MiniMax’s audio and video packages list RPM limits, ranging from 10 to 800 for audio and 20 to 50 for video. The OpenAI facts list ChatGPT quotas and rolling caps, not API rate limits. Verify API-specific quotas and scaling rules in each provider’s documentation.