Speech recognition and voice-generation API that lets developers add accurate, fast transcription and natural-sounding speech to any app.
deepgram.com
Alternatives to
Gradium
Best alternatives to Gradium in 2026
Building a voice feature into an app — a voice assistant, a dubbed video, a customer support bot that actually sounds human — usually means stitching together separate transcription, translation, and speech-synthesis services from different vendors. Gradium offers all of it as one platform: text-to-speech, speech-to-text, voice cloning from as little as a few seconds of audio, and real-time voice-to-voice translation, currently across English, French, German, Spanish and Portuguese. It's built by a Paris-based team spun out of the Kyutai research lab, founded by Neil Zeghidour, a former Google DeepMind voice researcher, and it emphasizes speed — sub-300ms latency for streaming responses, positioned for live conversational use rather than just batch audio generation. Pricing is credit-based: a free tier gives 45,000 credits a month (roughly an hour of TTS generation, but restricted from commercial use), with paid tiers from $13/month up to $1,615/month for heavier volume, plus custom enterprise pricing. The company raised $100M in seed funding as of July 2026, with Nvidia among the investors — a large round for a young company, reflecting how competitive the AI voice space currently is.
Quick comparison of Gradium alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Developers building voice AI applications, platforms embedding speech APIs, enterprises with custom model needs | — | |
| 2 | Professionnels de l'informatique | — | |
| 3 | Utilisateurs non techniques, équipes commerciales/marketing/RH cherchant à automatiser des workflows répétitifs | — | |
| 4 | Équipes développant des agents IA en production (copilotes, startups SaaS, remplacement de systèmes RAG legacy) | — | |
| 5 | Équipes d'ingénierie et entreprises unifiant l'IA à travers plusieurs outils (Slack, GitHub, Linear, Teams) | — | |
| 6 | Developers and enterprise teams with sensitive data (legal, healthcare, compliance) | — | |
| 7 | Developers building AI agent integrations from existing OpenAPI specs | — | |
| 8 | Enterprise teams needing secure, self-hosted workplace AI search | — | |
| 9 | Small and mid-sized law firms priced out of enterprise legal AI | — | |
| 10 | Développeurs construisant des systèmes multi-agents IA ayant besoin d'un point de coordination public léger | — | |
| 11 | Développeurs voulant intégrer la génération d'images Midjourney dans une app, un SaaS ou un pipeline de contenu | — | |
| 12 | Équipes dev voulant du codage assisté par IA gouverné et auditable | — |
#1
- ✓ Both speech-to-text and text-to-speech in one API
- ✓ Bundled Voice Agent API for full voice pipelines
#3
Lets you build automations by describing them in plain English instead of dragging boxes around a workflow canvas, then connects them to tools like Slack, Notion or Google Sheets.
genfuseai.com
- ✓ Construction d'automatisations par description en langage naturel, pas de canvas visuel
- ✓ Agents IA capables de raisonnement et d'autocorrection, pas seulement du if-then
#4
Gives AI agents a real memory and a private workspace so they stop forgetting everything between conversations and re-reading the same documents over and over.
exabase.io
- ✓ Mémoire persistante avec extraction automatique de faits et résolution des contradictions
- ✓ Temps de réponse inférieur à 300ms selon l'éditeur
#5
Lets a company build one AI agent that lives inside Slack, GitHub, Linear and other tools it already uses, instead of juggling separate AI features bolted onto each app.
adapt.com
- ✓ Un seul agent partout au lieu d'IA fragmentées par outil
- ✓ Routage multi-modèles avec failover en cas de panne fournisseur
#6
A privacy-first LLM gateway that routes requests across 600+ models without logging prompts, verified via a Trusted Execution Environment.
trustedrouter.com
- ✓ Cryptographically verifiable no-logging via TEE attestation, not just a policy claim
- ✓ OpenAI-compatible API — easy migration from existing integrations
#7
Turns OpenAPI specs into safe, typed tools that AI agents can call, without manual wiring.
github.com
- ✓ Generates typed, ownable code instead of a runtime black box
- ✓ Automatic read/write/destructive risk classification
#8
Open-source enterprise AI platform connecting company knowledge across 50+ apps with permission-aware search.
pipeshub.com
- ✓ Open source (Apache 2.0), self-hostable — no cloud lock-in
- ✓ 50+ pre-built connectors to enterprise apps
#9
Free, open-source legal AI platform for document review, drafting and legal research.
mikeoss.com
- ✓ Free and open source (AGPL-3.0) — zero license cost vs. Harvey/Legora
- ✓ Grounded citations link answers back to source documents
#10
A public message board built for AI agents rather than humans — any agent can post a note, request, or result by hitting a URL, with zero setup, no SDK, and no account.
swarmmemo.com
- ✓ Poster ne demande qu'une requête GET, aucun setup
- ✓ Types de messages structurés + salons + flux Atom
#11
An unofficial REST API that lets developers generate Midjourney images from code instead of Discord, with webhooks, polling, and SDKs — since Midjourney itself doesn't offer a public API.
midjourney-api.com
- ✓ Accès API à Midjourney sans passer par Discord
- ✓ Webhooks et polling, SDK Python/Node.js
#12
A policy-bound cloud coding agent that works on isolated, pinned environments and delivers changes as pull requests, with an encrypted audit trail.
jern.ai
- ✓ Politique épinglée par digest, appliquée avant exécution
- ✓ Credentials courtes et scopées, pas de secrets stockés
FAQ about Gradium alternatives
- What is the best alternative to Gradium in 2026?
- Based on our selection, Deepgram is the best alternative to Gradium in 2026. Speech recognition and voice-generation API that lets developers add accurate, fast transcription and natural-sounding speech to any app.. See our full ranking above to compare all options.
- Is Gradium free?
- Gradium is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Gradium are there?
- mySelectas has listed 12 alternatives to Gradium in the AI & Machine Learning category. Our selection is updated regularly to include the best options available.