Gemini TTS Cost Calculator
Estimate Gemini text-to-speech spend from audio seconds. gemini-3.8-flash-tts Standard promo is about $0.00225 per 10s through 2026-12-31, then ~$0.0045 from 2027-01-01. Compare Flash-Lite TTS and 3.1 flash-tts-preview. Toggle Batch/Flex (~half) and post-promo rates. Cost ≈ (seconds/10) × $/10s + text tokens. Estimates only; official Gemini pricing prevails.
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Audio cost
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Text input cost
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Monthly USD
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Estimates only; official vendor pricing prevails (2026-10-30). Audio ≈ (seconds/10) × $/10s. 3.8 Flash/Lite promo through 2026-12-31; ~double from 2027-01-01. Batch/Flex ≈ half where published.Official pricing: Gemini
OpenAI TTS Cost Calculator · Gemini Live Voice Cost Calculator · OpenAI Realtime Voice Cost Calculator
More in this group
- TTS API Cost Comparison OpenAI vs ElevenLabs vs Gemini vs Cartesia TTS.
- Cartesia TTS Cost Calculator Cartesia credits → plan, overage, $ / audio minute.
- ElevenLabs TTS Cost Calculator TTS chars × $/1K; optional STT hours.
- OpenAI TTS Cost Calculator TTS characters or audio tokens by model.
- Gemini Live Voice Cost Calculator Live audio minutes plus optional text/image.
- OpenAI Realtime Voice Cost Calculator Realtime audio tokens and GPT-Live minutes in USD.
How it works
- How is Gemini TTS cost calculated?
- Audio ≈ (seconds ÷ 10) × official $/10s equivalent; optional text tokens ÷ 1M × text $/1M. Example: 1,000 seconds on 3.8 Flash promo ($0.00225/10s) → $0.225.
- What is the promo cliff?
- gemini-3.8-flash-tts and flash-lite-tts Standard promo rates run through 2026-12-31, then roughly double from 2027-01-01. Toggle post-promo to price the cliff.
- Do Batch and Flex help?
- Where published, Batch and Flex are about half of Standard for these TTS models. Not every preview row lists Flex.
- How does this compare to OpenAI TTS?
- OpenAI uses $/1M characters or audio tokens. Use the OpenAI TTS calculator for that side; Gemini Live covers realtime dialogue.
- Are results billing-grade?
- No. Estimates only; official Gemini pricing prevails.