light estimatePrices from dated public sources

OpenAI API pricing

OpenAI has 2 ranked offerings on Syftly. Prices below are per-unit list prices from dated public sources — token- or credit-priced plans are flagged, and a missing price is shown as missing, never guessed.

OpenAI gpt-transcribe · Transcription

Transcription price$4.5 per 1000 min

Source: Artificial Analysis — Speech to Text; OpenAI docs & pricing 2026-08-20 · ranking updated 2026-08-20

Cheapest comparable transcription alternative: AssemblyAI Universal-3 Pro ($3.5 per 1000 min) — compare them.

Full ranking: Transcription

OpenAI gpt-4o-mini-tts · Text-to-speech

Text-to-speech price$15 per 1M chars *

* token-/credit-priced — the headline understates real per-unit cost, so it is excluded from cheapest-rankings.

Source: developers.openai.com/api/docs/pricing ($0.60/1M text input + $12/1M audio output; tts-1 $15/1M chars, tts-1-hd $30/1M chars); community pricing threads (~$15/1M chars estimate); vendor docs (~50 languages, not re-verified); Coval TTS benchmark via Openbenchmarks pulled 2026-08-20 (gpt-4o-mini-tts 775ms P50) 2026-08-20 · ranking updated 2026-08-20

Cheapest comparable text-to-speech alternative: Deepgram Aura-2 ($30 per 1M chars) — compare them.

Full ranking: Text-to-speech