Hume's EVI is an expressive, empathic speech-to-speech model priced $0.04–0.07/min — but that excludes the LLM (billed separately by your provider) and the lowest rates need a large plan. SpeechifyAI is truly all-in from $0.07/min with the LLM included, plus deterministic workflows, tool calling, and compliance — and 60 free minutes a month versus Hume's 5.
| Capability | Speechify | Hume |
|---|---|---|
| Pricing | From $0.07/min all-in — LLM included · 60 free min/mo | $0.04–0.07/min + external LLM billed separately |
| LLM cost | Included, no passthrough | Bring-your-own, billed by your LLM provider |
| Free tier | 60 min/mo, commercial use | 5 min/mo |
| Primary strength | Production platform: workflows, integrations, compliance | Emotionally expressive, empathic voice |
| Workflow editor | Visual + code, deterministic | Build-your-own |
| Integrations | Tool calling + webhooks | Build-your-own |
| Compliance | SOC 2 Type II | SOC 2 Type II |
Hume's Empathic Voice Interface is a strong empathic voice model at $0.04 to $0.07 a minute, but the per-minute price excludes the LLM; you bring an external provider and pay them separately, so the actual bill is the EVI subscription plus whatever the model spend turns out to be. SpeechifyAI is from $0.07 a minute on Pro with the LLM in the rate, so the bill stays predictable as model choices change, and a smarter model landing later leaves the rate unchanged.
Hume's emotion model is genuinely distinctive: 48 emotions and 600 voice descriptors, trained for empathic delivery. SpeechifyAI gives you emotion control plus SSML for warmth, urgency, or calm where the script asks for it, alongside deterministic workflows, tool calling, webhooks, simulated test callers, telephony, and SOC 2 Type II, which together cover the production layer Hume leaves to the customer.
SpeechifyAI is a single per-minute rate from $0.07 with the LLM included so the bill stays predictable as model choices change, plus emotion control, SSML, deterministic workflows, tool calling, telephony, and SOC 2 Type II compliance in the platform fee.