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AI/ML
DevTools/Cloud
Data/Analytics

Sail Research

Infrastructure solutions for AI agents

CORE INFO

$80M
Total Funding
Series A
Round
11-50
Team Size
San Francisco, California, USA
Headquarters

Sail Research provides infrastructure solutions specifically designed for long-horizon AI agents, enabling these autonomous systems to perform complex tasks efficiently over extended periods. Their platform is ideal for developers and enterprises looking to optimize AI operations with cost-effective and scalable solutions.

  • Sail Research recently raised $80 million in a Series A funding round led by Kleiner Perkins, achieving a post-money valuation of $450 million.prnewswire.com
  • The company offers a unique business model with a usage-based pricing structure, providing $5 in free credits monthly and options for both self-serve and enterprise plans.sailresearch.com
  • Sail Research's technology stack supports leading open-source models such as DeepSeek, Gemma, and GLM, enhancing the efficiency of AI operations.dailyaibrief.com

WHY WE WOULD WORK AT SAIL RESEARCH

Innovative AI Infrastructure

Join a leader in AI infrastructure solutions, specializing in long-horizon AI agents that perform complex tasks efficiently and cost-effectively.

Small, Dynamic Team

Be part of a tight-knit team of 11-50 employees, fostering collaboration and innovation in a fast-paced environment.

Usage-Based Pricing Model

Experience a unique compensation structure with $5 in free credits monthly, promoting a flexible and cost-effective approach to AI operations.

Cutting-Edge Technology

Work with an optimized inference stack and stateful Sailboxes, enabling you to run leading open-source models on demand.

Proven Success

Contribute to a company that achieved 90.72% accuracy on the BrowseComp-Plus benchmark while operating at significantly lower costs than competitors.

Mission-Driven Culture

Help build infrastructure for 'abundant intelligence,' focusing on efficiency and scalability to support the next generation of autonomous AI systems.

MARKET AND TRACTION

TOTAL ADDRESSABLE MARKET

  • Sail Research operates in the rapidly growing field of artificial intelligence infrastructure, specifically targeting long-horizon AI agents.

  • The demand for efficient and scalable AI solutions is increasing as more industries adopt autonomous systems for complex tasks.
  • NOTABLE CUSTOMERS

  • Sail Research has secured partnerships with notable clients such as Parallel Web Systems, Detail.dev, and Jack and Jill.

  • These collaborations highlight the company's credibility and the effectiveness of its infrastructure solutions in real-world applications.
  • KEY METRICS

    ✦ KEY METRIC
  • Sail Research has achieved a remarkable 90.72% accuracy on the BrowseComp-Plus deep research benchmark.

  • The company operates at up to 10 times lower cost than competing platforms, showcasing its efficiency and cost-effectiveness.
  • COMPETITIVE ADVANTAGE

  • Sail Research's custom inference stack is optimized for throughput and token efficiency, allowing users to run leading open-source models on demand.

  • The introduction of Sailboxes, which charge only for active compute time, enables long-running AI agents without incurring unnecessary costs, setting Sail Research apart from competitors.
  • FUNDING HISTORY

    ✦ KEY METRIC
  • Sail Research has raised a total of $80 million in funding, positioning it well for future growth and development.

  • The latest funding round, a Series A led by Kleiner Perkins, was announced on June 25, 2026, with a post-money valuation of $450 million.
  • PRODUCT AND TECH

    Optimized Inference Stack

    Sail Research offers a custom inference stack designed for high throughput and token efficiency, enabling users to run leading open-source AI models on demand. This technology is crucial for maximizing performance and reducing operational costs in AI applications.

    Sailboxes

    Sailboxes are stateful sandbox environments that charge only for active compute time, allowing for the efficient operation of long-running AI agents. This innovative pricing model helps users avoid unnecessary costs while maintaining the flexibility needed for complex AI tasks.

    Usage-Based Pricing Model

    The company operates on a usage-based pricing model, providing $5 in free credits monthly and catering to both self-serve and enterprise plans. This approach ensures that users only pay for what they use, making advanced AI infrastructure more accessible.

    Support for Open-Source Models

    Sail Research's platform supports a variety of leading open-source models, including DeepSeek, Gemma, GLM, Kimi, and Nemotron. This compatibility enhances the versatility of their infrastructure solutions, allowing users to leverage existing AI advancements.

    Long-Horizon AI Solutions

    Sail Research specializes in infrastructure solutions specifically designed for long-horizon AI agents, which are capable of performing complex tasks over extended periods. This focus on long-term operational efficiency is vital for the development and deployment of autonomous AI systems.

    COMPANY CULTURE

    Values

  • Commitment to efficiency and scalability

  • Focus on innovation in AI infrastructure

  • Emphasis on cost-effectiveness for clients

  • Support for open-source AI models

  • Dedication to building 'abundant intelligence' solutions
  • Operating Principles

  • Foster a culture of collaboration and teamwork

  • Encourage experimentation and learning from failures

  • Maintain transparency in decision-making processes

  • Prioritize user-centric design in product development
  • Benefits

  • Flexible work arrangements to support work-life balance

  • Opportunities for professional development and growth

  • Access to cutting-edge technology and tools

  • Monthly credits for using the platform, enhancing user experience
  • Team Cadence

  • Regular team meetings to align on goals and projects

  • Bi-weekly check-ins to discuss progress and challenges

  • Open-door policy for feedback and communication
  • Learning & Growth

  • Continuous learning encouraged through workshops and training

  • Mentorship programs for new employees

  • Access to industry conferences and networking events
  • HIRING SIGNAL

    0
    Open roles on their careers page
    Snapshot via live ATS poll
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    Net new roles in the last 90 days
    Available once weekly history accrues
    90-Day VelocityV2 · BACKFILL
    Trend builds weekly as historical rows accrue
    SourcesGreenhouseLeverAshbyWorkableSmartRecruitersRipplingRecruiteeFallback · Wellfound, YC Work-at-a-Startup, careers-page scrape

    KEY COMPANY ANNOUNCEMENTS

    Filter
    10 announcements · ranked by importance
    Jul 3, 2026FUNDINGSail Research Closes $80M in Funding to Build Max-Efficiency Infrastructure for AI Agentstheaiinsider.tech
    Jun 27, 2026FUNDINGSail Research Raises $80 Million To Build Infrastructure For Long-Horizon AI Agentspulse2.com
    Jun 25, 2026FUNDINGSail Research Raises $80 Million to Build Max-Efficiency Infrastructure for AI Agentsprnewswire.com
    Jun 25, 2026FUNDINGSeed + Series A: Sail raises $80M in funding from Sequoia, Kleiner Perkins, and other investors | Sail Researchsailresearch.com
    Jun 25, 2026PRESSSail Research emerges from stealth with $80 million from Kleiner Perkins | Fortunefortune.com
    Jun 25, 2026PRESSSail: The Inference Platform for Long-Horizon Agents | Kleiner Perkinskleinerperkins.com
    Sep 21, 2026PRESSChasing Speed of Light on TPU v6esailresearch.com
    Jul 16, 2026PRESSPerforming live migrations of VMs at scalesailresearch.com
    Jul 15, 2026PRODUCTSailboxes: Cloud environs for long horizon AIsailresearch.com
    Jul 14, 2026PRESSHow we perform live migrations of massive VMssailresearch.com