セールスインテリジェンスAI — 2億7,500万件の連絡先データベースに加え、AIシーケンス、ダイヤラー、案件管理を提供します。
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Amplemarket vs Sierrawhich AI sales agent should you pick in 2026?
Three-agent AI SDR suite (Signal, Research, Sequence) inside one outbound platform.
Tool useMemoryRAG
Amplemarket vs Sierra — specs
| Spec | Amplemarket | Sierra |
|---|---|---|
| Agent Rank | 65 / 100 (B) | 78 / 100 (A) |
| Autonomy | Semi-autonomous | Autonomous |
| Pricing | Subscription · from $99 | Subscription · Free tier |
| Open source | No | No |
| Capabilities | Tool use, Memory, RAG | Voice, Tool use, Memory, RAG |
| Integrations | 5 apps | 3 apps |
| Verified | — | Verified |
| Released | Jul 2025 | Feb 2025 |
Agent Rank breakdown
Amplemarket
Agent Rank
65/ 100
- 自律性
- 8
- 機能
- 6
- 連携
- 6
- 料金
- 6
- 完成度
- 7
- 検証性
- 6
自律性、機能、連携、料金、成熟度、編集部の検証を基に自動算出。デプロイごとに更新されます。 どのように算出されているか?
Sierra
Agent Rank
78/ 100
- 自律性
- 9
- 機能
- 8
- 連携
- 6
- 料金
- 9
- 完成度
- 5
- 検証性
- 10
自律性、機能、連携、料金、成熟度、編集部の検証を基に自動算出。デプロイごとに更新されます。 どのように算出されているか?
Pros & cons
Amplemarket
メリット
- +3-agent suite (Signal + Research + Sequence) is the most comprehensive in AI SDR
- +G2 #1 in 2026 AI SDR benchmark (4.6 rating, 571+ reviews)
- +Tight Salesforce + HubSpot integration with bidirectional sync
デメリット
- −Per-seat pricing — adds up fast for medium-sized teams
- −Steeper learning curve than single-purpose tools like AiSDR
- −Best results require clean CRM hygiene before deployment
Sierra
メリット
- +Best-in-class for branded customer-facing agents (voice + chat parity)
- +Concierge onboarding from one of the strongest teams in AI
- +Indistinguishable-from-human quality in tier-1 deployments
デメリット
- −Enterprise-only pricing — typical contracts $150–500k/year
- −Deployment is white-glove, not SaaS — multi-week setup
- −Overkill for SMB or mid-market support volumes
Pricing
Amplemarket
Starter
$99/席/月
Small teams
- +Signal + Research agents
- +1K verified emails/mo
- +Email + LinkedIn
おすすめ
Growth
$199/席/月
Growing sales orgs
- +Add Sequence agent
- +5K emails/mo
- +CRM sync (Salesforce/HubSpot)
Enterprise
カスタム
Large GTM teams
- +Custom volumes
- +Dedicated CS
- +SSO + governance
Sierra
おすすめ
Branded agent
カスタム
Enterprise
- +Voice + chat
- +Custom persona
- +White-glove implementation
- +SOC 2 II + HIPAA option
Which one should you pick?
Amplemarket
Pick Amplemarket if its specific capabilities (Tool use, Memory) match what you need.
Try Amplemarket →Sierra
Pick Sierra if cost is the main constraint or if you want the highest autonomy and the verification loop is in place.
Try Sierra →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick Amplemarket or Sierra in 2026?+
Pick Amplemarket if its specific capabilities (Tool use, Memory) match what you need. Pick Sierra if cost is the main constraint or if you want the highest autonomy and the verification loop is in place. Most working teams running both can use Amplemarket for primary work and Sierra for the workflows where its specific strengths matter.
What's the price difference between Amplemarket and Sierra?+
Amplemarket starts at Subscription · from $99; Sierra starts at Subscription · Free tier. Sierra is the cheaper entry option. For team deployments the TCO can differ — use the AI Agent Rank TCO calculator for your specific volume.
Which is more autonomous, Amplemarket or Sierra?+
Sierra is the more autonomous of the two (Autonomous vs Semi-autonomous). Higher autonomy ships throughput faster but requires verification loops in place — see our autonomous-vs-copilot framing for when each tier wins.
Readers comparing Amplemarket and Sierra also picked
Adjacent agents in the same category with overlapping capabilities — worth a side-by-side glance before you commit.
営業向けAIデジタルワーカー — Alice（SDR）・Mike（SDR）・Jordan（CSM）がアウトバウンドのフルサイクルを担当。
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