OpenAI vs AssemblyAI Pricing (2026)
How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.
| OpenAI | AssemblyAI | |
|---|---|---|
| Starts at | $8/mo | Custom |
| Number of plans | 4 | 2 |
| Free plan | ||
| Free trial | — | |
| Pricing model | per-seat | usage-based |
Price is one row. To weigh the features too, use our feature comparison template →
Free
- Unlimited text chats with GPT-5.6 Luna
- Limited messages with uploads
- Limited image creation
- Limited voice chats
- Limited deep research
- Limited memory and context
- Limited Codex access
- Limited ChatGPT Work access on desktop
Go
- More messages with tools
- More uploads
- More image creation
- More voice chats
- Longer memory
Plus
Popular- Advanced reasoning models with GPT-6
- Expanded messages and uploads
- More complex and accurate image creation
- Expanded deep research
- Expanded memory and context
- Projects, scheduled tasks, and custom GPTs
- Expanded Codex usage
- Expanded access to ChatGPT Work on desktop, web, and mobile
- Early access to new features
Pro
- Your choice of 3 usage tiers
- Pro reasoning powered by GPT-6 Astra
- Longer Codex and ChatGPT Work sessions
- Dot, your always-on agent
- Unlimited and faster image creation
- Maximum deep research
- Maximum memory and context
- Expanded projects, tasks, and custom GPTs
- Research preview of new features
Pay as you go
- Universal-3.5 Pro ($0.21/hr)
- Universal-2 ($0.15/hr)
- Universal-3.5 Pro Realtime ($0.45/hr)
- Universal-Streaming ($0.15/hr)
- Universal-Streaming Multilingual ($0.15/hr)
- Sync API ($0.45/hr)
- Voice Agent API ($4.50/hr)
- Speaker Diarization ($0.02/hr pre-recorded, $0.12/hr realtime)
- Medical Mode ($0.15/hr)
- Keyterms Prompting
- Prompting ($0.05/hr)
- Speaker Identification ($0.02/hr)
- Translation ($0.06/hr)
- Custom Formatting ($0.03/hr)
- Entity Detection ($0.08/hr)
- Sentiment Analysis ($0.02/hr)
- Auto Chapters ($0.08/hr)
- Key Phrases ($0.01/hr)
- Topic Detection ($0.15/hr)
- Summarization ($0.03/hr)
- Profanity Filtering ($0.01/hr)
- PII Audio Redaction ($0.05/hr)
- PII Text Redaction ($0.08/hr)
- Content Moderation ($0.15/hr)
- LLM Gateway
- No minimum commitments
- No credit card required to start
Custom
- Custom rate limits
- Enhanced concurrency
- Enterprise-grade flexibility
- Volume-based pricing
- Custom starting concurrency limits
OpenAI vs AssemblyAI FAQ
- Which one is cheaper?
- One or both use custom pricing, so it depends on your specific needs.
- Can I use either one for free?
- Both offer free plans, so you can try each without paying. Start with whichever fits your workflow better and upgrade when you hit the limits.
- How do they charge?
- Different approach here. OpenAI uses per-seat pricing, while AssemblyAI goes with usage-based. That changes the math depending on your team size and usage.
- Which one is a better deal?
- Depends on what you need. OpenAI: At $20/mo, Plus sits right at the now-standard price point for consumer AI subscriptions (matching Claude, Gemini Advanced), so they're not competing on price at the mid-tier — they're competing on being the default. The $8 Go tier is a newer, cheaper wedge clearly aimed at price-sensitive users tempted by free alternatives, while Pro at $100+ chases power users and prosumers away from needing API access. AssemblyAI: They're positioning as the developer-friendly, API-first alternative to Deepgram and Rev AI — competitive on price at scale but differentiated by the breadth of AI features (LLM Gateway, multichannel, etc.). The AWS Marketplace listing signals they're actively chasing enterprise procurement budgets.
Still deciding? See the best OpenAI alternatives or the best AssemblyAI alternatives, ranked with verified pricing.
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