TTS API improvements
Introduced a TTS WebSocket endpoint that streams text in and speech out.
Hume AI changelog: August 2025
5 releases from to
Everything Hume AI shipped in August 2025, collected from official Hume AI sources. Each entry is dated and links to the page it came from.
August 2025 at a glance
August 2025 was Hume AI's 4th busiest month of the 12 months to then: 5 releases, about 1.6× its monthly average of 3. That was 2 releases more than July 2025. Every release this month was API.
Releases
5
+2 vs July 2025
Rank of 12 months
4th
Average 3.2 a month
Most shipped
API
5 releases
Notable Hume AI launches in August 2025
- API
TTS API improvements
Introduced a TTS WebSocket endpoint that streams text in and speech out.
Source: Hume API Changelog - API
EVI API improvements
Fixed a bug where the voice_id query parameter on the /chat endpoint only accepted Voice Library voices. It now supports custom voices as well.
Source: Hume API Changelog - API
EVI API improvements
Added support for OpenAI’s GPT-5 , GPT-5-mini , and GPT-5-nano models as a supplemental LLM options.
Source: Hume API Changelog
All Hume AI releases in August 2025
Newest first. Each entry links to the official page it came from.
August 20255 releases
EVI API improvements
Fixed a bug where the voice_id query parameter on the /chat endpoint only accepted Voice Library voices. It now supports custom voices as well.
EVI API improvements
Added support for OpenAI’s GPT-5 , GPT-5-mini , and GPT-5-nano models as a supplemental LLM options.
EVI API changes, EVI API improvements
Added new voice_id query parameter to EVI /chat endpoint. The name or ID of the voice from the Voice Library to be used as the speaker for this EVI session. This will override the speaker set in the selected configuration. Removed editable context type for injected context. EVI…
EVI API changes
Added new voice_id query parameter to EVI /chat endpoint. The name or ID of the voice from the Voice Library to be used as the speaker for this EVI session. This will override the speaker set in the selected configuration. Removed editable context type for injected context.
Where August 2025 sits
Hume AI releases per month, for August 2025 and the 11 months before it. A taller bar means more releases that month; the dated entries for each month are on its own page.
Other companies in August 2025
10 of the companies we track shipped in August 2025; Hume AI ranks 1st by number of releases.
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