# Fiber AI Review (2026): AI SDR Pricing, Limits & Alternatives > Fiber AI is a Web SaaS tool for AI SDR (Autonomous B2B Sales Agents & AI BDRs) in AI SDR & Outbound. Pricing: From $300/mo. Best suited to B2B Sales Leaders, SDR/BDR Teams and Revenue Operations (RevOps). Editor ratings: AI autonomy L3 (conditional automation); moat score 4.2/5.0 (Proprietary moat). Fact-checked by Vasilia Xia on Oct 12, 2026. Autonomous outbound sales platform and live B2B identity data infrastructure powering programmatic prospecting, verified contact enrichment, and agentic. ## Key facts | Field | Value | | :-- | :-- | | Category | AI SDR & Outbound › Autonomous B2B Sales Agents & AI BDRs (AI SDR) | | Category aliases | AI Sales Agent, AI BDR, AI Sales Assistant | | Official website | https://www.fiber.ai/ | | Pricing | From $300/mo | | Pricing source | https://www.fiber.ai/pricing | | Free plan | No / not disclosed | | Delivery | Web SaaS | | Audience | B2B Sales Leaders, SDR/BDR Teams, Revenue Operations (RevOps) | | AI autonomy level | L3 · Conditional automation | | Moat tier | 4.2 / 5.0 · Proprietary moat | | Funding stage | Seed | | Verified total funding | $4.3M | | Verified lead investors | Y Combinator, Liquid 2 Ventures | | Founders | Adi Agashe, Neel Mehta | | Company size | 11-50 employees | | Headquarters | San Francisco, California, United States | | Founded | 2023 | | Ecosystem integrations | Outreach | | Governance & docs | [API & Docs](https://api.fiber.ai/docs) · [Terms](https://www.fiber.ai/terms) · [Privacy](https://www.fiber.ai/privacy) | | Verified profiles (sameAs) | https://www.linkedin.com/company/fiberai/, https://www.crunchbase.com/organization/fiber-ai | | Fact-checked by | Vasilia Xia on Oct 12, 2026 | | Last data check | Oct 12, 2026 | ## Buyer fit verdict: when to choose vs. skip Fiber AI ### Choose Fiber AI if - **Target ICP & Stack Fit**: You operate as B2B Sales Leaders, SDR/BDR Teams and Revenue Operations (RevOps) requiring a Web SaaS deployment for AI SDR, with verified ecosystem connectivity for Outreach. - **L3 Architecture & Defensibility**: Proprietary real-time identity graph indexing over 850 million professional records, coupled with direct programmatic APIs optimized for consumption by autonomous sales and recruiting agents. - **Commercial Model Fit**: Your procurement budget aligns with From $300/mo. ### Walk away from Fiber AI if - Walk away if your team is at early validation stage with a <$250/mo tool budget (Fiber AI starts at From $300/mo before seat or usage expansion). - Walk away if your workflow cannot tolerate deliverability infrastructure maintenance: Sustained high-volume agentic dispatch risks domain reputation degradation if secondary mailbox rotation and warming protocols are not strictly orchestrated by the customer. - Walk away if credit consumption volatility is a deal-breaker for your team: Automated multi-step agent runs execute cascading API queries that can rapidly exhaust monthly credit allocations during broad exploratory prospecting passes. ## Fiber AI verified pricing tier schedule | Tier / Plan | Verified Rate | Team Scale Fit | Highlights & Quota Gates | | :-- | :-- | :-- | :-- | | Entry / Starter | $300/mo | 1–2 seats | 15,000 credits per month | | Growth | $900/mo | 5 seats | For high-growth teams optimizing outreach at scale. | ## Hidden TCO multipliers & contract negotiation playbook ### Hidden cost drivers to audit - **Annual Billing Headline vs. Monthly Premium**: Headline entry rates reflect annual billing commitments (Save 17%); month-to-month flexibility carries a higher effective monthly rate or requires annual prepayment. - **Credit & Usage Burn Multiplier**: Automated workflows consume metered credits/usage quotas; multi-step enrichment, voice minutes, or high-frequency agent runs can trigger mid-cycle top-up packs. ### Contract levers to demand before signing - Negotiate price-lock protection on additional seats and overage credits above the From $300/mo entry tier. - Require a sandbox proof-of-concept testing deliverability infrastructure maintenance against your live CRM/data schema before annual sign-off. ## Ecosystem integrations & compliance - **Supported integrations**: Outreach. ## Pros & cons ### Pros (Core strengths) - **Real-time B2B identity graph**: with verified work emails and direct dials - **Autonomous prospecting agent generating**: tailored outreach copy based on buyer signals - **Credit-based programmatic API access designed**: for external agentic workflows - **Reverse email and domain enrichment**: for inbound lead routing ### Cons (Operational limitations) - **Deliverability infrastructure maintenance**: Sustained high-volume agentic dispatch risks domain reputation degradation if secondary mailbox rotation and warming protocols are not strictly orchestrated by the customer. - **Credit consumption volatility**: Automated multi-step agent runs execute cascading API queries that can rapidly exhaust monthly credit allocations during broad exploratory prospecting passes. - **Niche market data density**: While coverage is deep across technology and white-collar sectors, data fresh rates decline when querying specialized vertical markets or non-traditional corporate hierarchies. ## Moat analysis Proprietary real-time identity graph indexing over 850 million professional records, coupled with direct programmatic APIs optimized for consumption by autonomous sales and recruiting agents. ## Editorial review Fact-checked by Vasilia Xia on Oct 12, 2026. ### Background Backed by $4.3M in venture funding and established in 2023 in San Francisco, California, United States, Fiber AI develops autonomous outbound infrastructure that combines programmatic data enrichment with agentic sales execution. Built to eliminate the operational overhead of managing fragmented prospecting stacks, the platform targets growth leaders, revenue operations directors, and engineering teams deploying autonomous sales agents. By uniting a direct B2B identity graph with generative outreach tooling, the software acts as an automated SDR layer for scalable pipeline generation. ### How Fiber AI works At its architectural core, the system utilizes a proprietary identity index comprising hundreds of millions of professional records, functioning through live search and enrichment APIs. Rather than ingesting static third-party contact databases, the ingestion pipeline queries real-time employment changes, promotion markers, and organizational shifts. Autonomous execution agents then synthesize these discrete telemetry points to formulate dynamic outreach copy, routing messages through calibrated outbound delivery rails and exposing programmatic endpoints for external AI agent integrations. ### Limitations Operational considerations and platform boundaries include: - **Deliverability infrastructure maintenance**: Sustained high-volume agentic dispatch risks domain reputation degradation if secondary mailbox rotation and warming protocols are not strictly orchestrated by the customer. - **Credit consumption volatility**: Automated multi-step agent runs execute cascading API queries that can rapidly exhaust monthly credit allocations during broad exploratory prospecting passes. - **Niche market data density**: While coverage is deep across technology and white-collar sectors, data fresh rates decline when querying specialized vertical markets or non-traditional corporate hierarchies. ### Fiber AI pricing Commercial access operates on a subscription structure paired with credit-based consumption tiers, starting at $300 per month for the Prospector tier. This baseline allotment includes recurring monthly search and enrichment credits, charging exclusively for successful record resolutions such as verified contact discovery and reverse lookups. Higher tiers scale available credit volumes and concurrency limits for organizations deploying high-throughput autonomous agents or direct API pipelines. ### How Fiber AI compares Within the autonomous sales landscape, Fiber AI contends with platforms like 11x.ai, 1mind, and Actively AI. While 11x.ai and Actively AI focus heavily on conversational persona simulation and multi-channel conversational threads, Fiber AI differentiates through its proprietary identity foundation and low-latency data APIs. It represents an optimal architecture for technical revenue teams demanding reliable, programmatically verifiable data infrastructure beneath their autonomous outreach logic. ## Frequently asked questions about Fiber AI ### How much does Fiber AI cost and what pricing tiers are available? Published pricing summary for Fiber AI: From $300/mo. A permanent free plan is not disclosed for Fiber AI. Verified tier schedule: Entry / Starter ($300/mo for 1–2 seats); Growth ($900/mo for 5 seats). Commercial access operates on a subscription structure paired with credit-based consumption tiers, starting at $300 per month for the Prospector tier. ### How does Fiber AI work and how autonomous is its AI architecture? Autonomous outbound sales platform and live B2B identity data infrastructure powering programmatic prospecting, verified contact enrichment, and agentic. Within AI SDR (Autonomous B2B Sales Agents & AI BDRs), MarTechRadar rates its execution architecture at L3 · Conditional automation with a verified Moat Score of 4.2 / 5.0 (Proprietary moat). Proprietary real-time identity graph indexing over 850 million professional records, coupled with direct programmatic APIs optimized for consumption by autonomous sales and recruiting agents. Corporate profile: Founded by Adi Agashe, Neel Mehta, operating at 11-50 employees scale. ### What are the main limitations of Fiber AI and when should buyers walk away? Based on our editorial technical audit, key operational considerations and boundaries for Fiber AI include: (1) Deliverability infrastructure maintenance: Sustained high-volume agentic dispatch risks domain reputation degradation if secondary mailbox rotation and warming protocols are not strictly orchestrated by the customer. (2) Credit consumption volatility: Automated multi-step agent runs execute cascading API queries that can rapidly exhaust monthly credit allocations during broad exploratory prospecting passes. (3) Niche market data density: While coverage is deep across technology and white-collar sectors, data fresh rates decline when querying specialized vertical markets or non-traditional corporate hierarchies. Primary procurement walk-away rule: Walk away if your team is at early validation stage with a <$250/mo tool budget (Fiber AI starts at From $300/mo before seat or usage expansion). ### What integrations, compliance certifications, and contract terms apply to Fiber AI? Verified ecosystem and stack integrations include Outreach. First-party governance and developer endpoints verified on domain include: API Docs (https://api.fiber.ai/docs). Key TCO multiplier to watch: Annual Billing Headline vs. Monthly Premium (Headline entry rates reflect annual billing commitments (Save 17%); month-to-month flexibility carries a higher effective monthly rate or requires annual prepayment.) Before signing a contract, procurement teams should negotiate price-lock protection on additional seats and overage credits above the From $300/mo entry tier. ### What are the best Fiber AI alternatives and head-to-head competitors in 2026? Top fact-checked alternatives to Fiber AI in AI SDR (Autonomous B2B Sales Agents & AI BDRs) include Apollo.io (Free plan · $49–$119/seat/mo · Enterprise plan), Outreach (Custom / enterprise pricing), Salesloft (Custom / enterprise pricing), Regie.ai (Free plan · $41–$125/seat/mo). Within the autonomous sales landscape, Fiber AI contends with platforms like 11x.ai, 1mind, and Actively AI. ## Alternatives - Apollo.io: https://martechradar.ai/tools/apollo-io/ - Outreach: https://martechradar.ai/tools/outreach/ - Salesloft: https://martechradar.ai/tools/salesloft/ - Regie.ai: https://martechradar.ai/tools/regieai/ - 11x.ai: https://martechradar.ai/tools/11xai/ --- Source: https://martechradar.ai/tools/fiber-ai/ — MarTechRadar.ai (data licensed CC BY 4.0, attribution required).