# Cresta

> Source: https://aiwiki.ai/wiki/cresta_ai
> Updated: 2026-06-09
> Categories: AI Companies, Conversational AI, Enterprise AI
> From AI Wiki (https://aiwiki.ai), a free encyclopedia of artificial intelligence. Quote with attribution.

**Cresta** (Cresta Intelligence, Inc., cresta.com) is an American company that builds [generative AI](/wiki/generative_ai) software for contact centers. Its platform combines real-time agent assist (live, on-screen suggestions delivered to human agents during phone calls and chats), conversation intelligence and analytics, automated quality management and coaching, and AI virtual agents that handle customer conversations without a human present. Cresta was founded in 2017 and spun out of the Stanford Artificial Intelligence Laboratory; its co-founders are Zayd Enam, Tim Shi, and the computer scientist [Sebastian Thrun](/wiki/sebastian_thrun), who served as chairman. The company is headquartered in the San Francisco Bay Area and had raised more than $270 million across four venture rounds by late 2024, reaching a valuation of $1.6 billion.[1][2][3]

Cresta's core idea is "human-centric AI": using machine learning to study what the best-performing agents say and do, then surfacing that expertise to every agent in real time, rather than replacing human staff outright. Over time the product line broadened from agent assistance into a unified platform spanning analytics, live guidance, and full automation.[3][4][5]

## History

### Founding

Cresta grew out of doctoral research at Stanford. Zayd Enam, who held a bachelor's degree in electrical engineering and computer science from the University of California, Berkeley, began a PhD at Stanford in 2015 under [Sebastian Thrun](/wiki/sebastian_thrun), the director of the Stanford AI Lab who had previously led Google's self-driving car project, co-founded Google X, and co-founded the online-education company Udacity. At Stanford, Enam met fellow PhD student Tim Shi, an early researcher at [OpenAI](/wiki/openai). The two left their doctoral programs to commercialize their work, and Thrun, who had advised Enam, joined as co-founder and chairman of the new company.[1][3][6]

The company was incorporated in 2017. Enam became chief executive officer and Tim Shi became chief technology officer. Cresta's early thesis was that contact-center agents vary enormously in effectiveness, and that AI could close that gap by detecting "the psychology, behavior, and language that top contact center agents use" and then coaching every agent toward those patterns in real time.[1][6][3]

| Co-founder | Role | Background |
| --- | --- | --- |
| Zayd Enam | Co-founder, CEO (2017-2023) | PhD candidate at Stanford AI Lab; BS in EECS, UC Berkeley |
| Tim Shi | Co-founder, CTO | PhD candidate at Stanford; early OpenAI researcher |
| Sebastian Thrun | Co-founder, Chairman | Stanford AI Lab director; founder of Google X, Udacity; led Google's self-driving car project |

### Funding

Cresta operated in stealth for roughly its first three years. It emerged publicly on February 3, 2020, announcing $21 million in total funding to date. That figure included a $15 million Series A round; the financing was led by [Andreessen Horowitz](/wiki/andreessen_horowitz) and Greylock Partners, with participation from angel investors including Sun Microsystems co-founder Andy Bechtolsheim, Mark Leslie, and Vivi Nevo. At launch, Cresta said Fortune 500 companies were already using the product, and that in lab testing the technology had roughly doubled the throughput of partner sales teams.[1][6][7]

In March 2021, Cresta closed a $50 million Series B round led by Sequoia Capital, with participation from Greylock Partners, Andreessen Horowitz, Allen & Company, and Porsche Ventures. Sequoia's Carl Eschenbach joined the board, which by then also included former AT&T executive John Donovan alongside chairman Sebastian Thrun. The company said its revenue had quadrupled over the prior year.[8][9]

On March 17, 2022, Cresta announced an $80 million Series C round led by Tiger Global at a $1.6 billion post-money valuation, roughly quadrupling its value in a year. The round was notable for drawing strategic investment from contact-center and communications platform vendors: Genesys, Five9, and Zoom all participated, as did J.P. Morgan and CarMax, alongside returning investors Sequoia Capital, Greylock Partners, Andreessen Horowitz, and Porsche. Cresta said it had tripled revenue over the prior year and reported a net revenue retention rate of 210%.[2][10][11]

On November 19, 2024, Cresta announced a $125 million Series D round, bringing total funding to more than $270 million. The round was led by new investors WiL (World Innovation Lab) and QIA, with participation from Accenture, EnvisionX, LG Technology Ventures, Qualcomm, and Workday Ventures, plus returning backers Andreessen Horowitz, Greylock Partners, J.P. Morgan, Sequoia Capital, and Tiger Global. The company said it had nearly quadrupled its annual recurring revenue and nearly doubled its customer base over the prior two years. Cresta's Series D press release did not disclose a new valuation; the most recently announced figure remained the $1.6 billion set at the Series C.[12][13][3]

| Round | Date announced | Amount | Lead investor(s) | Notable participants | Valuation |
| --- | --- | --- | --- | --- | --- |
| Series A (stealth launch, $21M total) | Feb 3, 2020 | $15M Series A | Andreessen Horowitz, Greylock | Andy Bechtolsheim, Mark Leslie, Vivi Nevo | Not disclosed |
| Series B | Mar 2021 | $50M | Sequoia Capital | Greylock, a16z, Allen & Co., Porsche Ventures | Not disclosed |
| Series C | Mar 17, 2022 | $80M | Tiger Global | Genesys, Five9, Zoom, J.P. Morgan, CarMax, Sequoia, Greylock, a16z, Porsche | $1.6B post-money |
| Series D | Nov 19, 2024 | $125M | WiL, QIA | Accenture, Qualcomm, Workday Ventures, LG Technology Ventures, EnvisionX, a16z, Greylock, J.P. Morgan, Sequoia, Tiger Global | Not disclosed |

### Leadership change

In May 2023, Cresta named Ping Wu as chief executive officer. Wu, a former Google executive, had co-founded Google's Contact Center AI solution in 2017 and overseen conversational-AI products including Cloud Dialogflow, Cloud Translation, and Speech, and had also helped build Google Cloud's AI Platform products such as Vertex AI and AutoML. Wu had worked with Cresta since 2021 and had been serving as interim CEO before the permanent appointment was announced on May 19, 2023. Co-founder Zayd Enam stepped down from the CEO role, which the company said followed a record fourth quarter, and moved into an advisory capacity. Sebastian Thrun remained chairman and Tim Shi remained as a co-founder in the technology organization.[14][15]

## Products

Cresta's offering is built around a single platform that the company frames as three pillars sharing common data, models, and governance: conversation intelligence (analysis), agent assist (augmentation of human agents), and AI agents (automation). The product set has evolved over time, and historical product names such as Cresta Director (manager coaching) and Cresta Insights (analytics) have been folded into the broader platform.[4][5][16]

### Agent Assist

Agent Assist is Cresta's original product. It listens to a live call or reads a live chat and gives the human agent real-time guidance on screen, including suggested responses, objection-handling prompts, knowledge answers, hints, checklists, compliance reminders, and after-call summaries. The aim is to shorten ramp time for new agents and lift conversion, customer satisfaction, and first-contact resolution by surfacing proven behaviors in the moment. Adjacent capabilities include automatic call summarization and note-taking, AI-assisted coaching, and "smart compose" suggestions for written replies.[4][16][5]

### Conversation Intelligence

Conversation Intelligence analyzes 100% of customer conversations (rather than a sampled fraction) to surface trends, score quality, automate compliance checks, and capture the "voice of the customer" at scale. It underpins automated quality management (QM) and coaching workflows, letting supervisors identify what drives good and bad outcomes across large agent populations.[4][5][17]

### AI Agent

Cresta's AI Agent is a virtual agent that can handle customer conversations autonomously across voice and chat, escalating to a human when needed. The company positions its AI Agent as part of the same platform as its human-agent tools, so that conversation data, knowledge, and analytics are shared between automated and human handling, and so that a conversation handed off from a bot to a person carries context with it.[4][5][16]

### Opera

Cresta Opera is a self-service "command center" that lets contact-center managers configure the AI without writing code. Through Opera, non-technical users can build rules that recognize conversational behaviors and cues and trigger actions across the platform, driving personalized coaching, automated QA and compliance, and real-time assist. It is the interface through which customers tailor Cresta's models to their own business.[18][16]

## Technology

Cresta's systems are built on [large language models](/wiki/large_language_model) and other [natural language processing](/wiki/natural_language_processing) techniques, fine-tuned on contact-center conversation data. The company combines [speech recognition](/wiki/speech_recognition) (to transcribe live calls), [retrieval-augmented generation](/wiki/retrieval_augmented_generation) (to ground answers in a customer's knowledge base), and models tuned for the domain to produce low-latency suggestions during a live interaction.[19][20][5]

On June 21, 2023, Cresta announced Ocean-1, which it described as the first foundation model purpose-built for the contact center. Rather than training a model from scratch, Cresta built Ocean-1 by combining strong base models, citing OpenAI's [GPT-4](/wiki/gpt_4), Anthropic's [Claude](/wiki/claude), and the open-source Falcon-40B, with contact-center domain data and alignment techniques such as self-instruct and reinforcement learning from human feedback (RLHF). Cresta said Ocean-1 was designed for three goals: better out-of-the-box performance on contact-center tasks, better instruction-following learned from feedback, and lower latency and cost for serving real-time applications at scale. The company later reported that a small, roughly 7-billion-parameter Ocean model could outperform GPT-4 on the retrieval-augmented question-answering that powers its Knowledge Assist feature while being far more cost-effective to run.[19][21][20]

Cresta's broader engineering position is that no single model is optimal for every task in a contact center, so it uses a mix of [fine-tuned](/wiki/fine_tuning) smaller models and larger general models depending on the job, balancing quality, latency, and cost. The company has said it processes very large volumes of conversations through these systems on behalf of enterprise customers.[20][22]

## Adoption

Cresta sells to large enterprises, typically deploying across contact centers with tens to hundreds of agents per customer and pricing through customized annual contracts. By 2024 the company reported that it had crossed $100 million in annual recurring revenue.[12][23]

Publicly named customers across Cresta's announcements and case studies include Intuit, CarMax, Cox Communications, Hilton, Brinks Home, Porsche, Holiday Inn Club Vacations, United Airlines, Alaska Airlines, and Verizon, among others. In one cited case, Brinks Home reported a 50% reduction in quality-management costs, a 75% first-call-resolution rate, and a 30-point increase in net promoter score after deploying Cresta. Cresta has said customers on average see meaningful improvements in customer satisfaction, faster agent onboarding, and reduced time spent on repetitive tasks, though such figures come largely from the company's own reporting and should be read in that light.[2][12][16]

Cresta has expanded internationally, operating offices in the United States (Palo Alto, San Francisco, and New York) and abroad (Berlin and Toronto), and announcing engineering hubs in Romania and India alongside its 2024 Series D. In its 2025 industry recognition, the company was named a Leader in The Forrester Wave for Conversation Intelligence Solutions for Contact Centers.[12][24]

## Competitive landscape

Cresta competes in a crowded market for contact-center and customer-experience software, which observers generally split into a few groups. Large, full-stack contact-center-as-a-service (CCaaS) and workforce platforms, including [NICE](/wiki/nice_systems), Verint, Genesys, Five9, and Talkdesk, offer broad suites (routing, scheduling, workforce management) with AI added on top. A second group consists of AI-native layers that sit on top of an existing CCaaS to provide analytics, real-time coaching, and automation, where Cresta competes most directly with companies such as Observe.AI, Balto, and Cogito. Notably, Genesys, Five9, and Zoom are simultaneously competitors and strategic investors in Cresta following the 2022 Series C.[10][25][26]

A newer axis of competition comes from AI-agent-first companies, most prominently [Sierra](/wiki/sierra_ai), the customer-experience startup co-founded by former Salesforce co-CEO Bret Taylor. Industry comparisons frame the two as approaching the same destination from opposite ends: Cresta began with human-agent assistance and conversation analytics and then added autonomous AI agents, whereas Sierra began with autonomous AI agents and later added tools for human agents. Cresta emphasizes that, unlike pure automation vendors, it also offers quality management and coaching for human staff and a shared data foundation linking analytics, live guidance, and automation.[25][27]

## Related

[Conversational AI](/wiki/conversational_ai), [AI agents](/wiki/ai_agents), [natural language processing](/wiki/natural_language_processing), [large language model](/wiki/large_language_model), [retrieval-augmented generation](/wiki/retrieval_augmented_generation), [speech recognition](/wiki/speech_recognition), [Sebastian Thrun](/wiki/sebastian_thrun), [OpenAI](/wiki/openai)

## See also

- [Parloa](/wiki/parloa)

## References

1. "Cresta launches out of stealth with $21M in funding from Andreessen Horowitz, others to provide AI for the human side of your contact center." TechStartups, February 3, 2020. https://techstartups.com/2020/02/03/cresta-launches-stealth-21m-funding-andreessen-horowitz-provide-ai-human-side-contact-center/
2. "Cresta Raises Series C, Quadruples Valuation to $1.6B on its Mission to Revolutionize the Contact Center with Real-Time Intelligence." PR Newswire, March 17, 2022. https://www.prnewswire.com/news-releases/cresta-raises-series-c-quadruples-valuation-to-1-6b-on-its-mission-to-revolutionize-the-contact-center-with-real-time-intelligence-301505177.html
3. "Cresta Closes $125M Series D to Accelerate Adoption of Human-Centric AI in the Contact Center." Cresta press release, November 19, 2024. https://cresta.com/press/cresta-closes-125m-series-d-to-accelerate-adoption-of-human-centric-ai-in-the-contact-center
4. "Cresta | AI Agents for Customer Experience." Cresta, accessed June 2026. https://cresta.com/
5. "Cresta Business Breakdown & Founding Story." Contrary Research, accessed June 2026. https://research.contrary.com/company/cresta
6. "AI startup Cresta launches from stealth with millions from Greylock and a16z." TechCrunch, February 3, 2020. https://techcrunch.com/2020/02/03/ai-startup-cresta-launches-from-stealth-with-millions-from-greylock-and-a16z/
7. "Cresta Launches with $21M of Funding To Enable Office Workers to be Experts on Day One." BusinessWire, February 3, 2020. https://www.businesswire.com/news/home/20200203005562/en/Cresta-Launches-with-%2421M-of-Funding-To-Enable-Office-Workers-to-be-Experts-on-Day-One
8. "Cresta Closes $50M Series B Funding." FinSMEs, March 2021. https://www.finsmes.com/2021/03/cresta-closes-50m-series-b-funding.html
9. "Sequoia, Greylock, and a16z Back Cresta's Expertise AI as Growth Quadruples." PR Newswire, March 31, 2021. https://www.prnewswire.com/news-releases/sequoia-greylock-and-a16z-back-crestas-expertise-ai-as-growth-quadruples-301259544.html
10. "Genesys, Five9, and Zoom Invest in Cresta." CX Today, March 2022. https://www.cxtoday.com/contact-center/genesys-five9-and-zoom-invest-in-cresta/
11. "Cresta Secures $80 Million in Series C." The SaaS News, March 2022. https://www.thesaasnews.com/news/cresta-secures-80-million-in-series-c
12. "Cresta Closes $125M Series D to Accelerate Adoption of Human-Centric AI in the Contact Center." PR Newswire, November 19, 2024. https://www.prnewswire.com/news-releases/cresta-closes-125m-series-d-to-accelerate-adoption-of-human-centric-ai-in-the-contact-center-302309858.html
13. "Cresta Raises $125M to Create the Unified Platform for Human and Virtual Agents." Cresta blog, November 2024. https://cresta.com/blog/cresta-raises-125m-to-create-the-unified-platform-for-human-and-virtual-agents
14. "Cresta Appoints Former Google-exec Ping Wu as CEO to Propel Generative AI Offerings." PR Newswire, May 19, 2023. https://www.prnewswire.com/news-releases/cresta-appoints-former-google-exec-ping-wu-as-ceo-to-propel-generative-ai-offerings-301829792.html
15. "Cresta Selects AI Heavyweight as New CEO." CX Today, May 2023. https://www.cxtoday.com/contact-center/cresta-selects-ai-heavyweight-as-new-ceo/
16. "About Cresta | Human-Centric AI for Customer Experience." Cresta, accessed June 2026. https://cresta.com/about-us
17. "Cresta Agent Assist | Real-Time Guidance for Agents." Cresta, accessed June 2026. https://cresta.com/agent-assist
18. "Cresta Raises Bar with New Generative AI Capabilities that drive efficiency and effectiveness in the contact center." PR Newswire, 2023. https://www.prnewswire.com/news-releases/cresta-raises-bar-with-new-generative-ai-capabilities-that-drive-efficiency-and-effectiveness-in-the-contact-center-301979791.html
19. "Introducing Ocean-1: World's First Contact Center Foundation Model." Cresta blog, June 21, 2023. https://cresta.com/blog/introducing-ocean-1-worlds-first-contact-center-foundation-model
20. "How fine tuned LLMs power knowledge assist, summarization, and chat suggestions." Cresta blog, accessed June 2026. https://cresta.com/blog/how-fine-tuned-llms-power-knowledge-assist-summarization-and-chat-suggestions
21. "How Ocean-1 enhancements beat GPT-4 in powering Knowledge Assist." Cresta blog, accessed June 2026. https://cresta.com/blog/how-ocean-1-enhancements-beat-gpt-4-in-powering-knowledge-assist
22. "Does One Large Language Model Fit All?" Cresta blog, accessed June 2026. https://cresta.com/blog/does-one-large-language-model-fit-all
23. "Cresta ARR hit $100M." ARR Club, accessed June 2026. https://www.arr.club/cresta/cresta-arr-hit-100m
24. "Cresta AI funding, news & analysis." Sacra, accessed June 2026. https://sacra.com/c/cresta-ai/
25. "Sierra vs Cresta: 2026 Contact Center AI Comparison." Cresta Guides, accessed June 2026. https://cresta.com/guides/comparisons-sierra-vs-cresta
26. "9 Best Verint Alternatives for Contact Centers in 2026." Cresta Guides, accessed June 2026. https://cresta.com/guides/best-verint-alternatives
27. "9 Best Contact Center AI Solutions 2026: Tested & Ranked." Retell AI, accessed June 2026. https://www.retellai.com/blog/best-contact-center-ai-solutions