OpenAI · Audio
Open-source speech recognition model from OpenAI supporting 99 languages with state-of-the-art accuracy.
Pricing
Free (open source) / $0.006/min API
Trust 92
Audio
Inworld AI
Inworld AI provides realtime voice and language models for consumer-facing applications: text-to-speech (TTS-2 and TTS-2 Flash) with voice cloning and voice design, speech-to-text, speech-to-speech for low-latency voice conversations, and LLM inference on 100+ open models. Monthly plans include usage credits equal to the plan price, unlock lower per-unit rates at higher tiers and roll unused credit over for three months. Every plan is covered by GDPR and SOC 2 Type II.
What’s good
- Pay-as-you-go tier with a commercial license and voice cloning
- Plan price is returned as usage credits, with three-month rollover
- TTS, STT, speech-to-speech and LLM inference from one account
Where it falls down
- Per-character TTS rates fall only on higher monthly tiers
- HIPAA, zero data retention and data residency limited to top tiers or add-ons
- Developer API product rather than an end-user app
Runs on
apiweb
Built for
developersconsumer appsvoice agents
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Cost against price
Inworld AI costs $25. What does it cost to run?
We do not know which model Inworld AI runs on, so here is the range. One seat doing the light workload, on the cheapest, middlemost and dearest models in the index.
| If it runs on | Model | Model cost | Left of $25 |
|---|---|---|---|
| Cheapest priced model | Qwen 3.7 Flash | $0.13 | $25 (99%) |
| Middle of the range | Grok 4.5 | $7.68 | $17 (69%) |
| Dearest priced model | GPT-6 Astra | $48 | $-23.00 (-92%) |
A model, not an audit. This is what the intelligence would cost at that shape of work, not what Inworld AI pays: we do not know its model, its real usage or what it has negotiated, and the figures exclude caching, batching and volume discounts. What the gap is worth is the product, and that is the thing to judge.
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