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| 3 models | Unknownseed-2.0-codeRemove × | assemblyaiAssemblyAI: Universal-3.5 ProRemove × | Briaremove_background_guidedRemove × |
|---|---|---|---|
| What’s different | 262.1K context · 131.1K max output · Tool calling · Structured output | Universal-3.5 Pro is AssemblyAI's speech-to-text model served through its Sync API, returning a complete transcript with word-level timestamps in a single synchronous response for audio up to 20 minutes. It... | Prompt-guided background removal by Bria: tell it what to keep or what to remove and get a clean cutout with true transparency, at the original resolution with the original pixels untouched. Trained… |
| Date | Oct 16, 2026Discovered | Sep 22, 2026Listed | Oct 14, 2026Listed |
API prices USD · provider configuration shown below | |||
| Listed rate | $0.50 in / $3.00 out/ 1M tokensExperiential · all routes ↗Standard · fewer than 128,001 input tokens | $83.3333 in / $0.00 out/ 1M tokensOpenRouter · all routes ↗ | See provider quotes |
| Provider endpoints | 1 endpoint → | 1 endpoint → | 0 endpoints → |
Benchmarks Each result retains its evaluation configuration | |||
| AMI-Cleaned WER ↗English short-form; normalization unversioned | Not reported | 10.63% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
| Earnings22-Cleaned-AA-chunked WER ↗English short-form; normalization unversioned | Not reported | 6.05% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
| Gigaspeech-Cleaned WER ↗English short-form; normalization unversioned | Not reported | 7.62% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
| LS Clean WER ↗English short-form; normalization unversioned | Not reported | 1.1% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
| LS Other WER ↗English short-form; normalization unversioned | Not reported | 2.11% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
| SPGISpeech WER ↗English short-form; normalization unversioned | Not reported | 1.81% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
| URGENT2024 WER ↗English short-form; normalization unversioned | Not reported | 9.08% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
| Voice Arena Monsoon WER ↗English short-form; normalization unversioned | Not reported | 3.49% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
| Voxpopuli-AA-Cleaned WER ↗English short-form; normalization unversioned | Not reported | 1.92% WER ↗assemblyai/universal-3-5-proLeaderboard entry | Not reported |
Specifications | |||
| Context window | 262.1K | — | — |
| Max output | 131.1K | — | — |
| Parameters | — | — | — |
| Tool calling | Supported | Not reported | Not reported |
| Structured output | Supported | Not reported | Not reported |
| Audio input | Not reported | Supported | Not reported |
| Transcription | Not reported | Supported | Not reported |
| Reasoning | Supported | Not reported | Not reported |