What it is

Speech company focused on emotional prosody. Octave 2 is an LLM-based TTS that reads context to decide how a line should be delivered and accepts plain-language acting directions. EVI is its empathic voice interface for agents, and an Expression Measurement API scores emotion in audio, video and text.

Why it earns a slot

The only TTS you can direct like an actor - tell it to sound sarcastic, hesitant or relieved and it complies rather than just reading the words. Best fit for narrative games, audio drama and characters that need real range.

Know before you commit

The commercial licence starts at the $14 Creator plan; the Free and $3 Starter tiers explicitly exclude commercial use. Overage rates vary nearly 3x across tiers, so heavy usage on a low plan gets expensive quickly.

Getting started

REST and WebSocket APIs for Octave TTS, EVI and Expression Measurement; measurement is pay-as-you-go from $0.0639/min.

Field notes

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Pricing snapshot

Free 10K chars/mo, no commercial licence. Starter $3 (30K), Creator $14 (140K, commercial), Pro $70 (1M), Scale $200 (3.3M), Business $500 (10M). Overage $0.05-$0.15 per 1K characters.

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Drop into your Lovable chat

Evaluate Hume AI (https://www.hume.ai) for this project, then use it only if it fits what we are already building.
Context: Emotionally expressive TTS. Speech company focused on emotional prosody. Octave 2 is an LLM-based TTS that reads context to decide how a line should be delivered and accepts plain-language acting directions. EVI is its empathic voice interface for agents, and an Expression Measurement API scores emotion in audio, video and text.
Reviewer notes (general, not written for this codebase): The only TTS you can direct like an actor - tell it to sound sarcastic, hesitant or relieved and it complies rather than just reading the words. Best fit for narrative games, audio drama and characters that need real range.
Watch out for: The commercial licence starts at the $14 Creator plan; the Free and $3 Starter tiers explicitly exclude commercial use. Overage rates vary nearly 3x across tiers, so heavy usage on a low plan gets expensive quickly.
Pricing: Free 10K chars/mo, no commercial licence. Starter $3 (30K), Creator $14 (140K, commercial), Pro $70 (1M), Scale $200 (3.3M), Business $500 (10M). Overage $0.05-$0.15 per 1K characters.
Setup: REST and WebSocket APIs for Octave TTS, EVI and Expression Measurement; measurement is pay-as-you-go from $0.0639/min.
Rules: treat the notes above as background only. Do not assume a theme, style, layout or feature that is not already in this project — inspect the existing code first and ask me before changing visual direction.

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