単一のプロンプトを完成した成果物に変える汎用エージェント。
ブラウザ操作ツール利用コード実行メモリ
AGENTS20を獲得コード
AGENTS20
Genspark vs Sierrawhich AI research agent should you pick in 2026?
Multi-agent super-agent with built-in AI phone module — research, slides, sheets, real-world calls.
BrowserTool useVoiceMemory
Genspark vs Sierra — specs
| Spec | Genspark | Sierra |
|---|---|---|
| Agent Rank | 68 / 100 (B) | 78 / 100 (A) |
| Autonomy | Autonomous | Autonomous |
| Pricing | Freemium · from $25 | Subscription · Free tier |
| Open source | No | No |
| Capabilities | Browser, Tool use, Voice, Memory, RAG, Multi-agent | Voice, Tool use, Memory, RAG |
| Integrations | 3 apps | 3 apps |
| Verified | — | Verified |
| Released | Jul 2025 | Feb 2025 |
Agent Rank breakdown
Genspark
Agent Rank
68/ 100
- 自律性
- 9
- 機能
- 10
- 連携
- 2
- 料金
- 7
- 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
Genspark
メリット
- +$385M Series B Apr 2026 — among the highest-funded multi-agent platforms
- +Unique built-in AI phone module — agent can make real-world calls
- +Generates slides + sheets + research reports in a single prompt
デメリット
- −Hot-button branding — China-founded but US-based; geopolitical scrutiny possible
- −AI phone occasionally fails on heavily-accented English
- −Higher consumer pricing than Perplexity / You.com
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
Genspark
Free
無料
Individuals
- +Super Agent
- +Limited AI phone calls
- +Standard speed
おすすめ
Plus
$25/月
Power users
- +Unlimited Super Agent
- +AI phone module
- +Priority compute
Pro
$200/月
Teams
- +Multiple agents in parallel
- +Shared workspaces
- +API access
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?
Genspark
Pick Genspark if its specific capabilities (Browser, Tool use) match what you need.
Try Genspark →Sierra
Pick Sierra if cost is the main constraint or if you want a vendor we've verified for accessibility and pricing accuracy.
Try Sierra →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick Genspark or Sierra in 2026?+
Pick Genspark if its specific capabilities (Browser, Tool use) match what you need. Pick Sierra if cost is the main constraint or if you want a vendor we've verified for accessibility and pricing accuracy. Most working teams running both can use Genspark for primary work and Sierra for the workflows where its specific strengths matter.
What's the price difference between Genspark and Sierra?+
Genspark starts at Freemium · from $25; 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, Genspark or Sierra?+
Both Genspark and Sierra are Autonomous agents — neither has a meaningful autonomy advantage over the other. The decision should hinge on capabilities and pricing instead.
Readers comparing Genspark and Sierra also picked
Adjacent agents in the same category with overlapping capabilities — worth a side-by-side glance before you commit.
Multi-agent orchestration platform from Japan — TRINITY model + finance underwriting agents.
ツール利用メモリRAGマルチエージェント
ChatGPT 内蔵のマルチステップリサーチエージェント — 自律的なブラウジングにより、5〜30分で引用情報豊富なレポートを生成します。
ブラウザ操作RAGメモリ
See more alternatives: alternatives to Genspark · alternatives to Sierra
Want the real monthly cost at your volume? Run the TCO calculator →
← Build your own comparison