kahma.io vs Inworld AI

kahma.io turns a single uploaded photo into AI-generated headshots and portraits through a browser tool focused on avatar-style likeness output. You drop a JPEG, PNG, or WebP file on the homepage and get a sample headshot without creating an account or entering a card. Pro unlocks higher resolution, 8K exports, image packs, and commercial rights.

Most avatar and headshot generators ask for a dozen selfies and train a custom model overnight. kahma.io skips that batch workflow and runs from one source image, with optional prompt text up to 400 characters for wardrobe or background cues. The site also documents memorial portrait use cases for deceased relatives, which is a narrower lane than generic corporate headshot apps.

Remote workers, job seekers, and dating app users can refresh a profile photo in minutes instead of booking a studio session the pricing page compares at $200 to $500. Teams that need consistent profile images without in-person shoots can subscribe to the unlimited Pro plan. Families looking for printable portrait keepsakes from old photos are another audience the homepage copy calls out directly.

Inworld AI sells realtime voice APIs for text-to-speech, speech-to-text, speech-to-speech agents, and LLM routing, including avatar and NPC voice generation for games. Its Realtime TTS-2 models advertise 100 ms time-to-first-byte, voice cloning from 15 seconds of audio, bracketed voice steering tags, and support for 200+ languages on a single voice.

Compared with stitching together separate TTS, STT, and gateway vendors, Inworld bundles those layers into Realtime API sessions and a zero-markup Router across 220+ LLM models. The homepage publishes side-by-side rate cuts, such as $12.50 per 1M characters for Realtime TTS versus $100 at ElevenLabs on comparable growth plans, which targets teams shipping consumer voice apps at scale.

Game studios still use Inworld for NPC and companion voices, but the current product also targets education, health, social apps, and agentic workforce tools. Developers sign up on platform.inworld.ai, pick an On-Demand free tier or a paid monthly plan with credits, and integrate through REST or WebSocket APIs documented at docs.inworld.ai.