AssemblyAI vs OpenAI: Pricing Comparison 2026
Side-by-side pricing comparison of AssemblyAI and OpenAI. See all plans, features, and costs at a glance.
Bottom line: AssemblyAI starts at Custom pricing and OpenAI starts at Custom pricing. Compare all 9 pricing tiers side by side.
Last updated: July 27, 2026
AssemblyAI vs OpenAI: Quick Pricing Facts
| Feature | AssemblyAI | OpenAI |
|---|---|---|
| Starting Price | Custom pricing | Custom pricing |
| Number of Plans | 2 | 7 |
| Free Tier | Yes | No |
| Pricing Model | usage-based | usage-based |
| Annual Discount | N/A | N/A |
AssemblyAI and OpenAI are both priced at Custom pricing, making them equally accessible AI & ML tools. Together they offer 9 pricing plans with 0 features compared, so the best choice comes down to which features match your needs.
AssemblyAI stands out with a free plan for getting started.
Review the detailed tier-by-tier comparison above to see exactly which features are included at each price point and find the best fit for your AI & ML needs.
| Pricing Plans |  AssemblyAI Try free |  OpenAI Try free |
|---|---|---|
| Tier 1 | Free $0/monthCheapest | Which model should I use? Custom pricing |
| Tier 2 | Pay as you go Custom pricing | Do you offer an enterprise package or SLAs? Custom pricing |
| Tier 3 | - | Will I be charged for API usage in the Playground? Custom pricing |
| Tier 4 | - | How will I know how many tokens I’ve used each month? Custom pricing |
| Tier 5 | - | How can I manage my spending on the API platform? Custom pricing |
| Tier 6 | - | Is access to the API included in ChatGPT Plus, Business, Enterprise or Edu? Custom pricing |
| Tier 7 | - | How is pricing calculated for images? Custom pricing |
← Swipe to compare plans →
Ready to get started? Try either tool free — no credit card required.
What Reviewers Say
Which Should You Choose?
Choose AssemblyAI if:
- •Your application specifically needs specialized audio intelligence with speaker diarization and audio-specific features
- •AssemblyAI's audio-focused models offer more audio intelligence features than Whisper alone
- •A dedicated audio API with per-minute billing fits your cost model better
Choose OpenAI if:
- •You want one API provider for transcription (Whisper), text generation (GPT-4o), and embeddings
- •OpenAI's ecosystem - Whisper, GPT, embeddings, assistants - covers your full application stack
- •Unified billing and a single API relationship simplify your infrastructure
AssemblyAI is a specialized audio AI API. OpenAI offers Whisper for transcription alongside its broader model portfolio. AssemblyAI's audio intelligence features - topic detection, auto chapters, sentiment analysis - go beyond what Whisper provides. OpenAI's advantage is ecosystem breadth: one API key for transcription, generation, embeddings, and fine-tuning. AssemblyAI's Whisper-based competitor starts at $0.37/hour; OpenAI Whisper is $0.006/minute. For pure transcription, OpenAI Whisper is cheaper. For audio intelligence features, AssemblyAI offers more depth.
Frequently Asked Questions: AssemblyAI vs OpenAI
How many pricing plans does AssemblyAI have vs OpenAI?
Does AssemblyAI or OpenAI offer a free plan?
Does AssemblyAI or OpenAI offer custom enterprise pricing?
How do AssemblyAI and OpenAI compare for AI & ML?
Sources
- AssemblyAI Official Pricing- Vendor pricing page
- OpenAI Official Pricing- Vendor pricing page
Related Articles
How Much Does ElevenLabs Cost in 2026? Complete Pricing Breakdown
ElevenLabs pricing 2026: Free (10K chars), Starter $5/mo, Creator $11/mo, Pro $99/mo, Scale $330/mo. Character limits, voice cloning tiers, API costs, and which plan fits your use case.
ChatGPT vs Claude Pricing in 2026: Which AI Assistant Is Worth Paying For?
ChatGPT Plus vs Claude Pro - both $20/month, but what you get differs significantly. This guide compares every tier, API costs per token, free tier limits, and which AI is worth paying for in 2026.
Best AI Tools Pricing Compared (2026)
AI tool pricing: ChatGPT ($20/mo), Claude ($20/mo), Jasper ($39-99/mo), Midjourney ($10-60/mo), Perplexity ($20/mo), Copy.ai ($49/mo). Pricing models and optimization.
Track Price Changes
Get notified when pricing changes for these tools.