Whisper rate limits, context window & usage caps by plan
Rate limits, context window, message limits, file upload caps and image generation limits — all plans compared.
Compare free tiers across all AI tools →Pay-as-you-goFree
View status →| Max File Size | 25 MB | Per audio file |
| Supported Formats | mp3, mp4, m4a, wav, webm, flac, ogg formats | |
| Supported Languages | 57 languages | |
| Output Formats | json, text, srt, vtt, verbose_json formats | |
| Timestamps | Yes boolean | Word-level timestamps supported |
About Whisper limits
Whisper enforces usage limits to manage server load and ensure fair access across all users. Limits vary significantly by plan tier — free plans are the most restricted while paid plans offer higher caps or unlimited access. Limits shown here are updated manually when OpenAI announces changes.
Check the Whisper live status and outage history to see if current limits are being affected by an outage.