Cognigy vs Sierra — Pricing, Plans, and Verified Costs (2026)
Both Cognigy and Sierra use custom pricing — request quotes from each to compare.
How pricing works
These two tools don't price the same way, so the headline numbers below aren't directly comparable until you plug in your own volume.
- Cognigy (Per Usage) — Cognigy bills purely on usage. There is no fixed per-seat fee, so the monthly cost depends entirely on how much you consume.
- Sierra (Per Usage) — Sierra bills purely on usage. There is no fixed per-seat fee, so the monthly cost depends entirely on how much you consume.
Per-minute, per-credit and per-token rates exclude any downstream model, speech or telephony costs unless the vendor states otherwise.
Enterprise conversational AI platform for voice + chat customer engagement. Cognigy.AI is deployed in contact centers to handle voice and chat with autonomous AI agents. Pricing: enterprise-only, reported deals $75K-500K+/year depending on channel and volume. Popular in European enterprises (Lufthansa, Bosch, Toyota) that need multi-language voice + chat support at scale.
AI-native customer experience platform founded by Bret Taylor (ex-Salesforce COO) and Clay Bavor (ex-Google). Positioned to compete with Ada + Decagon at the strategic enterprise level. All pricing custom-quoted, reported deals $200K-1M+/year. Customers include WeightWatchers, SonderMind, SoFi.
All plans compared
| Tier role | Plan | Cognigy monthly | Cognigy annual | Sierra monthly | Sierra annual |
|---|---|---|---|---|---|
| Enterprise | Enterprise | Custom | Custom | Custom | Custom |
Tier names differ across vendors. Rows are aligned by tier role, not name. Full tier structures on each tool's page.
What each is best for
Cognigy is worth it if… enterprise contact centers (especially European) that need conversational AI across both voice and chat channels with strong multi-language support. Deals reportedly $75K-500K+/year.
Sierra is worth it if… Sierra is only worth engaging with if you're a mid-market or enterprise support org running a serious evaluation of autonomous AI agents — the co-founders' pedigree (Bret Taylor ex-Salesforce COO) opens doors that other startups can't. Deal size $200K-1M+/year.
Bottom line: Similar positioning, closer to a preference call than a strategic one.
Choose Cognigy over Sierra if…
Choose Cognigy if…
- You want to pay only for actual usage (per usage, custom pricing).
- You match the profile Cognigy is built for: enterprise contact centers (especially European) that need conversational AI across both voice and chat channels with strong multi-language support.
- You're building for contact centers.
Choose Sierra if…
- You want to pay only for actual usage (per usage, custom pricing).
- You match the profile Sierra is built for: only worth engaging with if you're a mid-market or enterprise support org running a serious evaluation of autonomous AI agents — the co-founders' pedigree (Bret Taylor ex-Salesforce COO) opens doors that other startups can't.
- You need a general-purpose customer support option rather than a vertical-specific one.
At a glance
| Cognigy | Sierra | |
|---|---|---|
| Free plan | No | No |
| Entry price | Custom | Custom |
| Enterprise available | Yes | Yes |
| Pricing model | Per Usage | Per Usage |
| Last verified | September 20, 2026 | September 20, 2026 |
| Full pricing | View full pricing | View full pricing |
Pricing last verified September 20, 2026. Tracked daily.