AssemblyAI vs Writesonic Pricing (2026)
How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.
| AssemblyAI | Writesonic | |
|---|---|---|
| Starts at | Custom | $99/mo |
| Number of plans | 2 | 4 |
| Free plan | — | |
| Free trial | ||
| Pricing model | usage-based | per-seat |
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
Starter
- Track ChatGPT only
- 50 prompts, 50 answers tracked daily
- Ads monitoring
- 15 AI articles per month
- 10 site audits (100 pages each)
- Limited access (10 trial runs)
- 1 user, 1 project
- Standard email support
Basic
- Track ChatGPT, Gemini, Google AI Overviews
- 100 prompts, 300 answers tracked daily
- Ads monitoring
- 25 AI articles per month
- 20 site audits (1,200 pages each)
- Limited access (50 trial runs)
- 2 users, 1 project
- Standard email support
Growth
Popular- Track ChatGPT, Gemini, Google AI Overviews
- 200 prompts, 600 answers tracked daily
- Ads monitoring
- Sentiment Analysis included
- Action Center trial (5 off-page + 5 on-page actions/mo)
- 50 AI articles per month
- 50 site audits (2,500 pages each)
- Limited access (100 trial runs)
- 3 users, 2 projects
- Priority email support
Enterprise
- All 10 AI platforms tracked
- Custom prompts, regions, languages
- Full Action Center
- Sentiment Analysis
- AI search volume & trend insights
- Ads monitoring
- Brand Explorer, Page Tracker, Prompt Explorer, Alerts
- Shopping & Agentic Commerce
- Looker Studio & other integrations
- Custom AI articles per month
- Custom site audits (pages, frequency)
- Full access across AI visibility, content & SEO
- Custom users, projects & access control
- AI search strategist
- SSO/SAML, SOC 2 Type II, HIPAA, GDPR
AssemblyAI vs Writesonic 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?
- AssemblyAI has a free plan. Writesonic doesn't — though they do offer a free trial.
- How do they charge?
- Different approach here. AssemblyAI uses usage-based pricing, while Writesonic goes with per-seat. That changes the math depending on your team size and usage.
- Which one is a better deal?
- Depends on what you need. 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. Writesonic: They're positioning as premium in the AI writing space - $99/seat puts them well above tools like Jasper's lower tiers but below enterprise content platforms. Going after teams with budget who want more than basic AI writing assistance.
Keep tabs on both.
We'll monitor pricing changes for AssemblyAI and Writesonic and let you know when something moves.