Observed Signal · Sep 24, 2026 · Product Launch · Source: https://martechseries.com/feed/ · Impact: 2/5 · Sentiment: Positive
Guava Launches Daytona Voice Model and Open Benchmark
Guava released Daytona, a new voice model, and introduced the Guava Voice Index, an open scoring framework for voice agent quality. The index evaluates agents on responsiveness, conversational flow, fidelity, resolution, and TTS quality, with content accuracy weighted at 60% and voice experience at 40%. It combines automated metrics from EVA-Bench and Coval's benchmark with blind pairwise human evaluations. In September 2026 tests, Daytona scored highest at 58.88, ahead of ElevenLabs with GPT 5.4, Grok, and ElevenLabs with Haiku 4.5. However, no system exceeded 60, and human agents outperformed all AI systems in response timing and interruption recovery. Guava operates the full model stack and trains on over 10 billion minutes of live conversations. The full methodology is published publicly.
The launch of a new voice model and an open benchmark contributes to AI capabilities relevant to customer experience, but it is not a major platform shift.
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Key Takeaways & Evidence Grounding
- Guava launched Daytona, a new voice model, and the Guava Voice Index (GVI), an open benchmark.
- Daytona scored 58.88 out of 100, ranking first among tested systems.
- The GVI evaluates voice agents on five pillars: responsiveness, conversational flow, fidelity, resolution, and TTS quality.
- Humans outperformed all AI systems: preferred in 91% of response timing and 93% of interruption recovery comparisons.
- Guava's models are trained on over 10 billion minutes of live agent conversations since 2013.
Connected Companies & Entities
2 Entities mapped“ElevenLabs paired with GPT 5.4 and Haiku 4.5 were among the systems tested....”
“The GVI draws on components of EVA-Bench, the voice agent evaluation suite published by ServiceNow....”
Ontology Mapping & Concepts
Related Market Signals & Shifts
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