# Speechmatics vs Gladia: Speech-to-Text Comparison (2026)

Source: https://speechmatics-website-git-preview-speechmatics.vercel.app/how-we-compare/gladia-alternative

Speechmatics vs Gladia compared on accuracy, languages, deployment, and pricing. See why enterprises choose Speechmatics for speech-to-text.

## **Speechmatics vs Gladia:** Which Speech-to-Text API Delivers?

Speechmatics delivers industry-leading accuracy across noisy environments and multi-speaker audio and real-time diarization that Gladia can't match.

- [Get $200 Free Credit](https://speechmatics-website-git-preview-speechmatics.vercel.app#switch200)
- [Contact Sales](https://speechmatics-website-git-preview-speechmatics.vercel.app/speak-to-sales)

- G2 HighPerformer Summer 2024
- G2 HighPerformer Fall 2024
- [G2 Highest Adoption Fall 2024](https://www.g2.com/products/speechmatics/reviews)
- G2 Fall 2025 best users
- [G2 HighPerfomer Spring 2025](https://www.g2.com/products/speechmatics/reviews)
- [G2 HighPerformer Winter 2025](https://www.g2.com/products/speechmatics/reviews)
- [G2 Most likely to recommend Winter 2025](https://www.g2.com/products/speechmatics/reviews)
- G2 Users Love Us

## See how Speechmatics compares vs Gladia on your audio

Choose from live radio, your own voice, or sample audio to see side-by-side comparisons of Speechmatics vs Gladia.

## Why Speechmatics — Why enterprises choose Speechmatics over Gladia

### Accuracy on the audio that actually matters

Your users don’t speak in quiet studios. Speechmatics’ Ursa 2 model is trained on over one million hours of noisy, accented, real-world audio — and it shows. G2 reviewers score Speechmatics **94% for noise adaptation and 84% for speaker identification vs Gladia’s 75%**. When your pipeline hits Scottish accents over a bad VoIP line, that gap matters.

### Speaker Diarisation — Real-time diarisation, included

Speechmatics delivers **best-in-class real-time speaker diarisation at no extra charge**. Gladia does not offer speaker diarisation in real-time streaming — only in batch mode. If you’re building voice agents or live call analytics, you need to know who is speaking now, not after the call ends.

### Deployment Flexibility — On-prem, on-device, air-gapped

Speechmatics offers mature on-premises, on-device, and air-gapped deployment. **Gladia’s on-premises offering is currently paused**, with no on-device or air-gapped options — limiting choices for regulated industries.

## Feature comparison — Speechmatics vs Gladia: Feature-by-feature comparison

A detailed look at how the two platforms stack up across core capabilities, advanced features, and verified public reviews.

| **Feature** | **Speechmatics ★** | **Gladia** |
| --- | --- | --- |
| Flagship Model | Ursa 2 (Standard and Enhanced Accuracy) | Solaria-1 / Whisper-Zero |
| Supported Languages | 56+ production-proven languages | 100+ languages (claimed) |
| Real-Time Speaker Diarisation | ✓ Yes, included at no extra charge | ✗ Not available in real-time (batch only) |
| Custom Dictionary | 1,000 words (included at no extra charge) | Available (additional charge) |
| On-Premises Deployment | ✓ Mature, production-ready | ✗ Currently paused |
| On-Device Deployment | ✓ Yes | ✗ No |
| Air-Gapped Deployment | ✓ Yes | ✗ No |
| Pricing Model | Simple per-hour, all-inclusive | Per-hour + separate feature charges |
| ISO 27001 / SOC2 / HIPAA / GDPR | ✓ All four | ✓ All four |

### G2 Spring 2026 — Head-to-Head

| **Metric** | **Speechmatics ★** | **Gladia** |
| --- | --- | --- |
| Overall G2 Rating | 4.8 / 5 (52 reviews) | 4.8 / 5 (23 reviews) |
| Speaker Identification | **84%** | 75% |
| Environmental Noise Adaptation | **94%** | 93% |
| Installation & Setup Ease | **97%** | 93% |
| Secure Communication | **93%** | 88% |
| Regulatory Compliance | **95%** | 93% |
| Average Time to ROI | **3 months** | 5 months |
| Ease of Use | **94%** | 92% |

## Where Speechmatics outperforms Gladia

**Real-Time ASR | Enterprise Differentiation | Competitive Positioning**

### Superior real-world accuracy

G2 reviewers rate Speechmatics at **94% for noise adaptation and 84% for speaker identification**, nine points above Gladia. The platform is specifically trained on difficult audio: call-centre noise, accented speech, VoIP, and crosstalk.

### Real-time speaker diarisation

Gladia offers diarisation in batch mode only, with no real-time streaming option. Speechmatics delivers **real-time speaker diarisation at no extra charge**, available for voice agents, live call analytics, and meeting transcription.

### Faster time to ROI

G2 reviewers report an average **3-month time to ROI with Speechmatics versus 5 months with Gladia**. Installation and setup ease scores 97% versus 93%, which helps explain the difference.

### Stronger speaker identification

Speechmatics scores **84% vs Gladia's 75% for speaker identification** across 52 verified G2 reviews. For meetings, call centres, and voice agent pipelines, a 9-point accuracy gap has real downstream effects on transcript quality.

### Enterprise security confidence

Speechmatics scores **93% for secure communication** on G2, against Gladia's 88%. With 95% regulatory compliance and mature air-gapped deployment options, it's a more complete fit for security-sensitive enterprise procurement.

### Transparent, all-inclusive pricing

Speechmatics prices per audio hour with diarisation, custom vocabulary, and support included. **Gladia charges separately for each of these**, making total costs harder to forecast and the platform harder to evaluate.

## Limited time offer — Start building with Speechmatics today

Join thousands of developers who've made the switch. Get started with **$200 in free credits** when you sign up with promo code **SWITCH200**

### Start building with Speechmatics today

1) 👤 Log in or signup to [the Speechmatics Portal](https://portal.speechmatics.com/settings/billing/overview)

2) 💳 Add a valid payment card (no charge until credit is used)

3) 🔑 Enter your code: **SWITCH200**

4) 🚀 Start building with $200 free credit

- [Activate my credit](https://portal.speechmatics.com/settings/billing/overview)

## Frequently Asked Questions: Speechmatics vs Gladia

### How does Speechmatics compare to Gladia on G2?

Both platforms share a 4.8 out of 5 G2 rating, but Speechmatics has more than double the reviews (52 vs 23). In head-to-head G2 Spring 2026 metrics, Speechmatics leads on speaker identification (84% vs 75%), installation and setup ease (97% vs 93%), secure communication (93% vs 88%), regulatory compliance (95% vs 93%), ease of use (94% vs 92%), and average time to ROI (3 months vs 5 months).

### Does Gladia support real-time speaker diarisation?

No. Gladia’s speaker diarisation is available in batch mode only, not in real-time streaming. To get speaker separation in real-time, Gladia requires multi-channel audio input which increases cost. Speechmatics offers best-in-class real-time speaker diarisation at no extra charge — critical for voice agents, live meeting transcription, and real-time call analytics.

### Can Gladia be deployed on-premises?

Gladia’s on-premises deployment is currently paused. Speechmatics offers mature, production-ready on-premises deployment alongside on-device and fully air-gapped options. This is essential for enterprises in regulated industries like healthcare, finance, defence, and government that need full data sovereignty.

### How does Speechmatics pricing compare to Gladia?

Speechmatics offers transparent per-hour pricing with features like speaker diarisation and custom dictionary included at no extra charge. Gladia charges separately for add-on features on top of their base per-hour rate, making total costs harder to predict at enterprise scale. Speechmatics charges no penalty for opting out of model training.

### How many languages does Speechmatics support vs Gladia?

Speechmatics supports 56+ production-proven languages with the Ursa 2 model covering all accents and dialects. Gladia claims 100+ languages with code-switching support. Speechmatics’ language support is backed by G2-verified enterprise reviews and proven across diverse production deployments worldwide.

### Is Speechmatics more secure than Gladia?

Both platforms hold ISO 27001, SOC2 Type II, HIPAA, and GDPR compliance. However, Speechmatics scores higher on G2 for secure communication (93% vs 88%) and regulatory compliance (95% vs 93%). Speechmatics also offers air-gapped and on-device deployment for environments requiring the highest level of security and data isolation.

### Can I switch from Gladia to Speechmatics easily?

Yes. Speechmatics offers a straightforward REST API and WebSocket interface for real-time transcription. We offer **$200 in free credits with the code SWITCH200** and hands-on migration support from our customer success team. G2 reviewers rate Speechmatics 97% for installation and setup ease versus Gladia’s 93%.

## **Ready to switch to superior speech-to-text?**

Join thousands of developers building the future of voice with Speechmatics. 
Get $200 in free credits when you sign up today.

- [Get Started](https://portal.speechmatics.com/signup/)
- [Contact Sales](https://speechmatics-website-git-preview-speechmatics.vercel.app/speak-to-sales)

## Resources for AI Voice Agents

### Voice Agents — Vapi and Speechmatics: Build agents that understand every voice

- [Vapi and Speechmatics build better agents](https://www.speechmatics.com/company/articles-and-news/vapi-and-speechmatics-build-agents-that-understand-every-voice)

Ship Voice AI agents that stay readable in real time, even in noisy, multi-speaker calls.

- Speechmatics — Editorial Team

### Voice Agents — Introducing real-time, speaker-aware Voice Agents with LiveKit + Speechmatics

- [Introducing real-time, speaker-aware Voice Agents with LiveKit + Speechmatics](https://www.speechmatics.com/company/articles-and-news/build-ai-agents-that-understand-who-said-what-livekit)

Speechmatics brings speaker diarization to LiveKit agents - enabling them to understand not just _what_ was said, but _who_ said it.

- Anthony Perera — Product Marketing Manager

### Voice Agents — Pipecat and Speechmatics: Building Voice Agents that know exactly ‘Who’ said ‘What’

- [Pipecat and Speechmatics: Building Voice Agents that know exactly 'Who' said 'What'](https://www.speechmatics.com/company/articles-and-news/pipecat-and-speechmatics-building-voice-agents-that-know-exactly-who-said-what)

Build smarter voice agents on Pipecat with Speechmatics speech-to-text, now with powerful speaker diarization for real-world, multi-speaker conversations.

- Speechmatics — Editorial Team

### AI Agent Builder — How to build a conversational agent in less time than Cupid’s arrow takes to strike

- [Eros blog](https://www.speechmatics.com/company/articles-and-news/how-to-build-a-conversational-agent-in-less-time-than-cupids-arrow-takes-to-strike)

What happens when you set out to build a fully functioning AI love guru with very little turnaround time?  Let's find out...

- Farah Gouda — Data Engineer