(Updated Jan 2025)
This page shows a test of many English speechβtoβtext systems.

We use the same English audio for every system. Then we compare each systemβs text to a reference answer and give it a score between 0 and 1.
A higher score means the system is closer to the reference text and usually more accurate.
Ranking
| Workflow | Accuracy (mean score) | Latency (median, s) |
|---|
| GPT-4o Audio | 0.93 | 7.75 |
| GPT-Realtime | 0.93 | 7.70 |
| GPTβ5.2 | 0.91 | 5.99 |
| Gemini 3 Pro | 0.86 | 10.16 |
| Llama 4 | 0.91 | 5.77 |
| DeepSeek 3.2 | 0.88 | 6.17 |
| Gemini 3 Flash | 0.89 | 7.77 |
| GPTβ4.1 | 0.92 | 6.02 |
With this benchmark, you can:
- See which system gets the best score
- Compare different models and pipelines side by side
- Choose the best system for your app, research, or product
- Download all results for deeper analysis