Comet 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.
| Comet | Writesonic | |
|---|---|---|
| Starts at | $19/mo | $99/mo |
| Number of plans | 4 | 4 |
| Free plan | — | |
| Free trial | ||
| Pricing model | usage-based | per-seat |
Open Source
- Full AI observability & agent testing feature set
- True OSS: same codebase as the hosted versions
- Agent tracing & analysis
- Test Suites & assertions
- Agent Playground
Free Cloud
- Up to 10 team members
- 25k spans per month
- 60-day data retention
- Agent tracing & analysis
- Test Suites & assertions
- Agent Playground
- Ollie coding harness trial
Pro Cloud
Popular- Up to 50 team members
- 100k spans per month
- 60-day data retention
- Customizable monthly span limits
- Customizable data retention periods
Enterprise
- Unlimited team members
- Custom usage plans
- Flexible deployments
- Service accounts and view-only users
- Single sign-on
- Dedicated support and SLAs
- SOC 2, ISO 27001, ISO 9001, HIPAA, and GDPR compliance
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
Comet vs Writesonic FAQ
- Which one is cheaper?
- Comet starts lower at $19/mo, compared to $99/mo for Writesonic.
- Can I use either one for free?
- Comet has a free plan. Writesonic doesn't — though they do offer a free trial.
- How do they charge?
- Different approach here. Comet 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. Comet: At $19/mo entry, they're positioning as the accessible alternative to heavier MLOps platforms — clearly going after teams that find tools like Weights & Biases or Arize too expensive or too complex for pure LLM tracing use cases. The academic free Pro tier signals they're also playing a long game on developer mindshare. 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.
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