Voice Agent Pricing Calculator
Compare voice agents API costs and simulate latency
Voice Agent Pricing Calculator launched on May 20, 2025 with 11 votes, #1,913 of 7,905 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
The Voice Agent Pricing Calculator helps developers compare STT, LLM, and TTS providers to build optimal voice AI agents. Calculate realistic per-minute costs and visualize end-to-end latency across the entire voice-to-voice pipeline.
Estimate voice-agent costs with 101 source-linked STT, LLM, and TTS catalog entries verified 2026-07-22. Compare models, edit assumptions, and export results.
Compare source-linked STT, LLM, and TTS pricing verified 2026-07-22. The calculator combines speech-to-text, language-model, text-to-speech, and infrastructure assumptions. Rates are normalized where defensible; records with host-dependent, token-billed, native-currency, or runtime pricing remain visible but are excluded from incompatible calculator totals. Select one compatible model for each layer, enter conversation behavior and infrastructure assumptions, then review total and per-minute estimates. Fixed system/tool input and non-spoken output tokens default to zero because they are workload-specific. Public list pricing can exclude taxes, regional differences, commitments, free tiers,…from comparevoiceai.com
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I built a sub-500ms latency voice agent from scratchMar 2026 · ntik.me · ▲570I built a voice agent from scratch that averages ~400ms end-to-end latency (phone stop → first syllable). That’s with full STT → LLM → TTS in the loop, clean barge-ins, and no precomputed responses. What moved the needle: Voice is a turn-taking problem, not a transcription problem. VAD alone fails; you need semantic end-of-turn detection. The system reduces to one loop: speaking vs listening. The two transitions - cancel instantly on barge-in, respond instantly on end-of-turn - define the experience. STT → LLM → TTS must stream. Sequential pipelines are dead on arrival for natural…
Free LLM API Pricing Calculator2024 · docsbot.ai · ▲175Calculate and compare the cost of the latest LLM APIs
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