Sill vs Bear 2026
Head-to-head comparison of two AI visibility platforms. Bear (The marketing stack for AI agents) versus Sill (AI visibility simulator with counterfactual analysis and daily SOV tracking across 6 platforms). Here is what each platform does, where each is stronger, and which one fits your team.
Company overview
| Sill | Bear | |
|---|---|---|
| Focus | AI visibility simulator with counterfactual analysis, daily SOV tracking across 6 platforms, GEO recommendations | GEO platform combining AI visibility tracking with blog agent (automated content), PR/outreach workflow, and lead generation |
| Founded | 2024 | 2025 |
| HQ | United States | San Francisco |
| Funding | Bootstrapped | $500K (Y Combinator F25, Incisive Ventures, Team Ignite Ventures) |
| Customers | 139+ brands across 86 industries | 60+ companies (Cal.com, Browserbase, Wispr Flow, Groww, Peerspace) |
At a glance
| Sill | Bear | |
|---|---|---|
| Starting price | $0/mo (free tier) | $100/mo (Basic) |
| AI platforms at entry | 6 platforms | GPT-5 only (Basic); multi-platform requires Enterprise |
| Prompts at entry | 5 (free tier) | 30 (Basic) |
| Free tier | Yes | No |
| Content generation | No | Yes (Blog Agent: auto-generates AI-optimized articles) |
| GEO recommendations | Yes (748 across 62 brands, 87% on-site) | Content-focused (blog creation) |
| Outreach/PR tools | No | Yes (identifies cited third-party sources, automated outreach) |
| Lead generation | No | Yes (identifies high-intent visitors from AI sources) |
| Counterfactual simulation | In development | No |
| Stage | Established monitoring pipeline (139 brands, 86 industries) | Early stage (~60 customers, 2-9 person team) |
Feature comparison
| Feature | Sill | Bear |
|---|---|---|
| SOV tracking | Daily across 6 platforms, all tiers | Across 1-6 platforms (Enterprise for multi-platform) |
| GEO recommendations | Actionable on-site fixes | Blog Agent generates new content |
| Blog/content generation | No | Yes (AI-generated articles designed for LLM citation) |
| PR/outreach workflow | No | Yes (identifies sources, contacts authors for citation building) |
| Lead generation | No | Yes (converts AI-referred visitors) |
| Counterfactual simulation | In development | No |
| Competitor benchmarking | Yes | Yes |
| Citation tracking | Yes | Yes |
| Platform divergence analysis | Yes (91.6% single-platform citations) | Not a named feature |
| Prompt discovery | Yes | Yes (surfaces most-searched AI prompts) |
| Benchmark data | 139 brands, 86 industries | Limited (early stage) |
| Enterprise compliance | Roadmap | Not available |
Pricing comparison
| Tier | Sill | Bear |
|---|---|---|
| Entry | Free: $0/mo, 5 prompts, 6 platforms | Basic: $100/mo, 30 prompts, GPT-5 only |
| Mid | Basic: $90/mo, 120 prompts, 6 platforms | No mid-tier (Basic or Enterprise) |
| Upper | Pro: $225/mo, 360 prompts, 6 platforms | Enterprise: Custom (unlimited prompts, all platforms) |
| Content generation | Not included | 2 blog posts/mo (Basic), unlimited (Enterprise) |
| Outreach tools | Not included | Included in Basic |
| Annual discount | 20% | Not listed |
Which platform fits your team
Choose Sill if you:
- +Want monitoring across all 6 AI platforms without requiring an Enterprise plan
- +Need diagnostic insights into why your SOV looks the way it does
- +Prefer a platform with an established monitoring pipeline (139 brands, 86 industries of benchmark data)
- +Want to start free and scale incrementally
- +Need GEO recommendations for on-site content optimization rather than new content generation
- +Value platform divergence analysis (understanding why different AI platforms see you differently)
Choose Bear if you:
- +Want AI-generated blog content designed specifically for LLM citation
- +Need automated PR/outreach to build third-party citations
- +Want lead generation from AI-referred traffic as part of the same platform
- +Are a startup in the YC ecosystem and value the network effect
- +Prefer an action-first approach (create content + build citations) over a diagnostic approach (analyze and recommend)
- +Want a single tool that combines monitoring, content, outreach, and lead gen
Verdict
Bear and Sill represent two different philosophies in the GEO space. Bear is action-first: it generates content, automates outreach, and captures leads. Sill is diagnostic-first: it monitors visibility, analyzes platform divergence, and recommends specific on-site changes. Bear’s Blog Agent and PR workflow are genuinely useful for teams that need to create and distribute AI-optimized content from scratch. Sill’s GEO recommendations and platform divergence analysis are genuinely useful for teams that have existing content and need to understand what to change and why. Bear is very early stage ($500K funding, ~60 customers, 2-9 person team), which means rapid iteration but limited benchmark data and stability guarantees. Sill has an established monitoring pipeline across 139 brands and 86 industries. For startup teams that want to move fast with content creation and outreach, Bear is a compelling choice. For teams that want established monitoring depth and diagnostic precision, Sill is the stronger fit.
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