Guava website artwork: The voice platform for regulated industries. Image: Guava
In brief
Guava, a Los Angeles developer platform for voice agents that runs its own speech recognition, language and speech models built on more than a decade of Gridspace research, raised a $12.5 million seed round led by Acrew Capital in November 2026.
Guava, a Los Angeles startup that sells a developer platform for building AI voice agents, raised a $12.5 million seed round, the company announced on Nov. 3. Acrew Capital led, with Flourish Ventures, WillowTree Ventures and Clocktower Ventures taking part. Commerce Ventures, which backed Guava at pre-seed, also joined. CEO Omri Dahan told Axios Pro about the round.
The money will go toward model and product work and a go-to-market team aimed at large enterprises and business process outsourcers, the call-center companies that handle customer service for other businesses.
The demo problem
Dahan’s pitch is that voice AI works in a demo and fails on real calls. After speaking with companies that had tried it, he said, “Nearly every company we spoke with was dissatisfied with the voice AI they’d tried,” according to the funding announcement. Guava is aimed at banks, insurers, lenders and healthcare providers, where a dropped or botched call carries real cost.
How it works
Most voice agents are stitched together from separate speech-recognition, language and speech-synthesis vendors and steered mostly by prompts. Guava says it builds and runs all three itself as one stack, which it argues gives it control over speed and reliability.
Developers add Guava to their own products through Python, TypeScript or Claude Code, and write business rules in code rather than managing prompts. The company says developers can get a working agent in under five minutes on a free tier. It says enterprise customers typically take their first live regulated call within 14 days of kickoff.
Guava’s first public model, Daytona, launched in September. The company says it already supports more than a dozen enterprise customers and tens of thousands of calls a day. It also lists SOC 2 Type II, HITRUST i1 and PCI DSS Level 1 compliance, with agreements available for healthcare customers.
Where it comes from
Guava is built on Gridspace’s decade of foundation model work. Guava says Gridspace’s models were trained on more than 10 billion minutes of live conversations from regulated call centers. Dahan was a Gridspace investor and spent more than a decade as chief revenue officer at Marqeta, the payments company. He co-founded Guava with Gridspace’s technical co-founders, Anthony Scodary and Nico Benitez.
A benchmark that doesn’t flatter anyone
In September, Guava published the Guava Voice Index, which scores voice agents from 0 to 100 against live human agents handling the same calls. Daytona scored 58.88, ahead of ElevenLabs paired with GPT 5.4 at 57.11, Grok at 53.60 and ElevenLabs paired with Haiku 4.5 at 51.06. No system scored above 60.
Human agents still won. Evaluators preferred the human in 91% of comparisons on response timing and 93% on recovering from interruptions, across all four systems. Daytona also trailed on one measure. ElevenLabs with GPT 5.4 resolved more calls, earning 79% of available points against Daytona’s 67%.
These are Guava’s own scores on a test it designed. The company says it published the full method so others can check it.
What to watch
Guava’s funding announcement says Daytona “ranked in the top 10 on Coval’s word error rate benchmark, often in first or second place.” Scodary said the new funding will push its models toward edge devices, on-premise installs and full-duplex conversation, where an agent can listen and speak at the same time.
Guava cited Meticulous Research projecting the voice agent market will grow from $5.1 billion in 2026 to $43.8 billion by 2036. Dealroom noted that the largest enterprise agent companies raise hundreds of millions, while voice infrastructure startups such as Modulate ($25 million) and Karta AI ($3 million) raise far less. Guava has not disclosed revenue or a valuation in the coverage reviewed by AgenticFeed.
Source: Business Wire, “Guava Lands $12.5 Million to Tackle Voice AI’s Real-world Growing Pains,”
Additional sources: Business Wire, “Guava Launches Daytona, a State of the Art Voice Model, alongside an Open Benchmark Evaluating Voice Agent Performance,”; Dealroom News, “Guava raises $12.5M seed to build developer tools for voice agents.”; Axios Pro, “Exclusive: AI voice startup Guava raises $12.5M.”
