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 pricing | Writesonic pricing | |
|---|---|---|
| Starts at | $19/mo | $79/mo |
| Number of plans | 4 | 4 |
| Free plan | — | |
| Free trial | ||
| Pricing model | hybrid | flat-rate |
Price is one row. To weigh the features too, use our feature comparison template →
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 your brand across ChatGPT, Gemini, and Google AI Overviews
- Includes AI articles and site audits to fix visibility gaps
Basic
- SEO + GEO in one platform
- Track your brand across ChatGPT, Gemini, and Google AI Overviews
Growth
Popular- Track AI visibility and act on it
- Sentiment analysis, Action Center, and agentic workflows to fix what's broken
Enterprise
- Full SEO + GEO at scale
- All 10 AI platforms, full Action Center, agentic workflows, and a dedicated strategy team
Comet vs Writesonic FAQ
- Which one is cheaper?
- Comet starts lower at $19/mo, compared to $79/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 hybrid pricing, while Writesonic goes with flat-rate. 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 for Pro, Comet undercuts most enterprise-first MLOps and LLM observability tools that gate everything behind a sales call — this is a land-and-expand play aimed at developers and small teams who'd otherwise bounce off a 'contact us' wall. Writesonic: At $79-$399/mo, Writesonic sits mid-to-premium in the AI writing tool category — well above bare-bones tools like Jasper's entry tier but not quite at the top of the market. The lack of a free plan (just a trial) signals they're not chasing hobbyists or casual users; they want teams who've already decided AI content tools are worth budgeting for.
Still deciding? See the best Comet alternatives or the best Writesonic alternatives, ranked with verified pricing.
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