AI for game dev · GD4

Voice and dialogue for NPCs

6 candidates. None have been tested, so this list is alphabetical, not a rank.

Standard test task

Voice 10 lines for 2 characters and run a short in-engine conversational NPC; judge quality, latency, cost.

Not tested yet. A dash is an empty score, not a zero. We do not estimate results, prices, or ranks.

Unranked

Cartesia

Not tested yet

Free tier + usage based

Free tier

Checked 15 Oct 2026 · Source (opens in a new tab)

Low-latency voice models

Job resultWeight 40
—
Speed and effortWeight 15
—
Price and free tierWeight 15
—
Ease of startWeight 10
—
Reliability and trustWeight 10
—
Community signalWeight 10
—
Last tested
Not tested yet
Evidence
No test evidence yet.

No score. We do not estimate one.

Unranked

Charisma.ai

Not tested yet

Freemium

Free tier

Pricing being checked

Why this price is unverified

unverified (pricing page JS-rendered) https://charisma.ai/pricing

Interactive story/NPC dialogue platform

Job resultWeight 40
—
Speed and effortWeight 15
—
Price and free tierWeight 15
—
Ease of startWeight 10
—
Reliability and trustWeight 10
—
Community signalWeight 10
—
Last tested
Not tested yet
Evidence
No test evidence yet.

No score. We do not estimate one.

Unranked

Convai

Not tested yet

Freemium

Free tier

Pricing being checked

Why this price is unverified

unverified (pricing page not fetchable: bot-blocked/JS/no /pricing)

Conversational NPCs for Unity/Unreal

Job resultWeight 40
—
Speed and effortWeight 15
—
Price and free tierWeight 15
—
Ease of startWeight 10
—
Reliability and trustWeight 10
—
Community signalWeight 10
—
Last tested
Not tested yet
Evidence
No test evidence yet.

No score. We do not estimate one.

Unranked

ElevenLabs

Not tested yet

Freemium subscription

Free tier

Checked 15 Oct 2026 · Source (opens in a new tab)

Voices, SFX and music generation

Job resultWeight 40
—
Speed and effortWeight 15
—
Price and free tierWeight 15
—
Ease of startWeight 10
—
Reliability and trustWeight 10
—
Community signalWeight 10
—
Last tested
Not tested yet
Evidence
No test evidence yet.

No score. We do not estimate one.

Unranked

Hume AI

Not tested yet

Free tier + usage based

Free tier

Pricing being checked

Why this price is unverified

unverified (pricing page JS-rendered) https://www.hume.ai/pricing

Expressive voice AI

Job resultWeight 40
—
Speed and effortWeight 15
—
Price and free tierWeight 15
—
Ease of startWeight 10
—
Reliability and trustWeight 10
—
Community signalWeight 10
—
Last tested
Not tested yet
Evidence
No test evidence yet.

No score. We do not estimate one.

Unranked

Inworld AI

Not tested yet

Usage based

Free tier

Checked 15 Oct 2026 · Source (opens in a new tab)

Real-time AI NPC characters and TTS

Job resultWeight 40
—
Speed and effortWeight 15
—
Price and free tierWeight 15
—
Ease of startWeight 10
—
Reliability and trustWeight 10
—
Community signalWeight 10
—
Last tested
Not tested yet
Evidence
No test evidence yet.

No score. We do not estimate one.

Weights and rules are on How we rank.

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