Celeste AI: Brazilian Portuguese-focused AI voice and transcription platform offering on-demand transcription plus a meeting assistant and AI notes, with credit-based and subscription plans. Second Nature: AI role-play sales training software where reps practice live conversations with a conversational AI buyer and receive scoring and feedback. We compare them on cost, capture approach, and day-to-day fit so you can choose faster.
How Hosiqo compares and tests toolsFinal recommendation
Shortlist Celeste AI when brazilian teams transcribing meetings and calls in portuguese matters most, and Second Nature when certifying reps on new messaging before a product launch matters most. Try them side by side on real calls before deciding — needs vary by team.
Brazilian Portuguese-focused AI voice and transcription platform offering on-demand transcription plus a meeting assistant and AI notes, with credit-based and subscription plans.
AI role-play sales training software where reps practice live conversations with a conversational AI buyer and receive scoring and feedback.
Celeste AI is a Brazilian voice AI and transcription platform that specializes in Portuguese, particularly Brazilian Portuguese, while also processing audio in additional languages such as English, Spanish, German, Italian, and French. Originally known for automated audio-to-text transcription that the company positions as far more efficient than manual transcription, Celeste AI has expanded into a broader suite that includes a Meeting Assistant (Assistente de Reunião) and AI Notes (Notas de IA), alongside transcription and quality-monitoring offerings. The platform uses machine learning speech models tuned for Portuguese and is offered both as an on-demand service and via an API, so users and businesses can transcribe content as needed. Its on-demand model lets customers pay only for the hours they actually use by purchasing credits, with flexible subscription plans available for those who have recurring transcription needs. As a Brazilian company connected to local institutions such as FGV Ventures and the São José dos Campos technology park, Celeste AI is oriented toward the Brazilian market and Portuguese-language workflows, and it reports a growing user base. The service is currently operating, with a functioning login, demo requests, and support, and is suited to professionals and companies that need accurate Portuguese transcription and meeting documentation. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Second Nature is an AI role-play platform that lets customer-facing teams rehearse sales conversations by talking to a conversational AI that responds in real time, rather than reading scripts or scheduling peer practice. Reps can drill pitches, discovery questions, and objection handling as often as they like until they reach fluency and confidence, with the AI providing scoring and structured reports against the behaviors a team cares about. A core selling point is fast content creation: the platform can generate realistic role-play simulations from existing sales material in minutes, and it supports many languages and conversation styles for global organizations. It integrates with CRMs including Salesforce and HubSpot so enablement leaders can tie practice to live workflows. Typical applications include shortening new-hire ramp time, certifying reps on new messaging ahead of product launches, and giving managers analytics on where individuals and teams struggle. Second Nature focuses squarely on the practice-and-coaching side of the sales-conversation lifecycle, complementing call-recording tools rather than replacing them, and is used by enterprise and mid-market sales organizations. Pricing varies by plan. Check the official website for current pricing.
Best suited for
Celeste AI is a free tier with paid upgrades (freemium); Second Nature is a free tier with paid upgrades (freemium). Always confirm current pricing on each vendor's site before buying.
| Feature | Celeste AI | Second Nature |
|---|---|---|
| Core capability | AI transcription specialized for Brazilian Portuguese | Conversational AI role-play partners that respond in real time |
| Standout feature | Meeting Assistant for capturing and documenting meetings | AI scoring and structured performance reports |
| Team usage | AI Notes for organizing transcribed content | Rapid generation of role-play scenarios from existing sales content |
| Integrations | Support for multiple languages including English, Spanish, German, Italian, and French | Support for many languages and conversation styles |
| Languages & capture | On-demand credit-based usage plus flexible subscription plans | Manager analytics on skill gaps across reps and teams |
| Best-fit workflow | API access for integrating transcription into other workflows | CRM integrations with Salesforce and HubSpot |
Celeste AI
Choose Celeste AI if you need brazilian teams transcribing meetings and calls in portuguese — strengths include strong focus on brazilian portuguese transcription accuracy.
Second Nature
Choose Second Nature if you need reducing new-hire ramp time through repeated practice — strengths include realistic spoken practice rather than script-reading or scheduling peers.
Celeste AI
Second Nature
It depends on your workflow. Celeste AI is strong for brazilian teams transcribing meetings and calls in portuguese, while Second Nature is strong for reducing new-hire ramp time through repeated practice. Both transcribe and summarize meetings.
Celeste AI is a free tier with paid upgrades and Second Nature is a free tier with paid upgrades. Check each vendor's pricing page for the latest plans and free-tier limits.
Yes. Many teams run more than one meeting assistant when the workflows are complementary.
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