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It's a split decision.
Choose OpenAI for ChatGPT, its free plan and published individual and team tiers. Choose MiniMax if you want a range of text, multimodal, speech and music models, or need its speech API plans. OpenAI’s paid ChatGPT starts at $8/month; MiniMax Audio Starter is $5 monthly or $4/month when billed annually. Those are not equivalent offers: MiniMax’s text API pricing is not published, and its video packages start at $1,000/month.
01Side by side
| OpenAI | MiniMax | |
|---|---|---|
| Starting price | $8/month for ChatGPT Go | $5/month Audio Starter; $4 annualized |
| Free plan | ChatGPT Free is available | No free plan listed |
| Best for | ChatGPT users and teams | Model variety and speech API workloads |
| Core strength | ChatGPT, API platform and AI research | Text, multimodal, speech and music models |
| Learning curve | Not established in the source | Not established in the source |
| Integrations and data | Specific integration details not published | Specific integration details not published |
| Team and seat costs | $20/user monthly, annual billing; two-seat minimum | Workload pricing; seat costs not published |
| Support | Review support score: 5 | Review support score: 5 |
OpenAI Choose OpenAI if
- Choose OpenAI if you want a free ChatGPT plan.
- Choose OpenAI if you need published team seat pricing.
- Choose OpenAI if ChatGPT and its API platform fit your work.
MiniMax Choose MiniMax if
- Choose MiniMax if you need speech API plans with published limits.
- Choose MiniMax if you want text and multimodal model options.
- Choose MiniMax if annual Audio Starter pricing suits your workload.
02Pricing compared
OpenAI has a free ChatGPT plan, then paid individual options starting with Go at $8 per month. Plus is $20; Pro tiers are $100, $200 and $500 per month. Business starts at $25 per user monthly or $20 per user with annual billing, with a two-user minimum. Enterprise and Edu pricing is custom.
MiniMax has no free plan listed. Its Audio Starter plan is $5 monthly or $4 per month on annual billing, with 100,000 audio points and 10 RPM. Higher audio tiers run from $30 to $999 monthly before custom pricing. Video packages start at $1,000 per month and are valid for one month. These aren’t like-for-like prices: MiniMax’s text API pricing isn’t published, and the listed audio plans are for speech workloads.
03Features and depth
OpenAI combines ChatGPT, ChatGPT Business, an API platform and AI research. Its homepage also announces GPT-6.1 Terra and Images 2.6. ChatGPT plans include different limits: Free has a 27K-token context window and limited daily quotas, while Go and Plus list 54K standard context windows and 256K for reasoning. Plus adds advanced reasoning, deep research and custom GPTs, with periodic five-hour rolling usage caps.
MiniMax’s lineup spans text and multimodal models, including M3.1 Flash, the open-weight H3, Speech 2.8 and Music 3.0. It also offers MiniMax Code, described as an all-in-one agent for MiniMax models, MiniMax Design, and an API platform for developers and enterprises. That makes MiniMax the more varied named model lineup in this comparison, while OpenAI has a clearly listed ChatGPT product range. The trade-off: MiniMax’s text API rates aren’t published, so pricing that part of a switch is difficult.
04Ease of use and learning curve
For someone who simply wants to start chatting, OpenAI has the clearer entry point: ChatGPT offers a free plan and invites users to message it. Moving up to paid use means comparing limits, including quotas on Free and rolling caps on Plus. Teams can choose Business, but it has a two-user minimum.
MiniMax’s API is explicitly aimed at developers and enterprises, and its named products include MiniMax Code and Design. That may make it a better fit when a team is choosing models or speech API capacity, but the published information doesn’t establish how easy its tools are to set up. Before switching, check whether you need ChatGPT access, API access, or a specific MiniMax audio or video plan; the prices cover different products.
Questions people ask
Which is cheaper, OpenAI or MiniMax?
For general ChatGPT use, OpenAI is cheaper to try: it has a free plan, and its first paid tier is $8 per month. MiniMax has no free plan listed; Audio Starter costs $5 monthly or $4 per month with annual billing. That audio plan is not equivalent to ChatGPT.
Does MiniMax offer a free plan?
No free plan is listed for MiniMax in the published pricing information. Its Audio Starter plan starts at $5 monthly, or $4 per month with annual billing. OpenAI does list ChatGPT Free, though it has limited daily quotas for uploads, images, voice, browsing, Codex and deep research.
Can we compare OpenAI and MiniMax API pricing?
Not from the published figures here. MiniMax text API pricing is not published on the vendor's site, and the OpenAI pricing details list ChatGPT plans rather than API rates. MiniMax does publish speech and video plan prices, but those cover specific workloads and aren’t a direct text API comparison.
Who should choose MiniMax over OpenAI?
Consider MiniMax if you specifically want its text and multimodal model lineup, speech products, or paid speech API plans. Its Audio Starter plan costs $5 monthly or $4 per month annually. Choose OpenAI if you want ChatGPT, a free starting tier, and published individual and team subscription prices.