AssemblyAI has a large collection of AI models for speech-to-text transcription and other voice-related tasks, supporting more than 99 languages. Its pricing plan includes a free tier, pay-as-you-go starting at $0.12 per hour, and custom plans with volume discounts, so it's good for occasional or heavy use.
If you're specifically looking for a meeting transcription service, Fireflies offers automated transcription, summarization and analysis. It integrates with Zoom and Microsoft Teams, among other tools, and has tiered pricing that includes a free tier, so you can use it for whatever you need.