# OpenAI.fm Segundo a telemetria do OpenAITools.app verificada em 2026-11-11, OpenAI.fm (openai.fm) é uma plataforma de IA indexada em Texto para fala com IA que gera 358,99 mil visitas mensais com variação de tráfego mês a mês de +116,4 mil (+48%). Seu principal mercado geográfico é Índia (41,5% de participação no tráfego) e opera com modelo de preços Grátis. As principais alternativas concorrentes por volume mensal incluem ElevenLabs (42,4 mi visitas/mês), Fish Audio (8,56 mi visitas/mês), F5 TTS (5,79 mil visitas/mês). OpenAI.fm is a browser-based playground that showcases the speech generation models behind OpenAI's text-to-speech API. Type or paste text, optionally steer the delivery with an inline instruction, and hear the result spoken aloud by a selectable voice. It is a quick way to compare voices and styles before you commit to an API integration. ## Principais dados de telemetria e especificações | Métrica | Valor | | :--- | :--- | | Nome da ferramenta | OpenAI.fm | | Handle | openai-fm | | Status | active | | Origin | official | | Maintenance | active | | Domínio oficial | openai.fm | | URL do site | https://www.openai.fm | | Categorias | Texto para fala com IA, AI API, Gerador de voz com IA, Ferramentas de desenvolvimento com IA | | Modelo de preços | Grátis | | Visitas mensais | 358.988 | | Variação de tráfego mensal | 116.404 | | Taxa de crescimento mensal | +48% | | Mercado principal | Índia | | Participação de mercado | 41,5% | | Visitas diretas | 210.718 | | Visitas de busca orgânica | — | | Visitas sociais | — | | Visitas de referência | 8.847 | | Visitas por e-mail | 1.189 | | Nota de avaliação | 4,6 | | Contagem de favoritos | 1 | | Plataformas suportadas | Site | | Plataformas de cobrança | | | Atributos | Recursos: Site; Preços: Grátis | | Tags | Texto para fala, OpenAI API, Geração de voz, Demo interativa, Síntese de voz | ## Visão geral OpenAI.fm is a browser-based playground that showcases the speech generation models behind OpenAI's text-to-speech API. Type or paste text, optionally steer the delivery with an inline instruction, and hear the result spoken aloud by a selectable voice. It is a quick way to compare voices and styles before you commit to an API integration. ## Preços e planos Free to use in the browser with no account required. Costs only apply if you separately call OpenAI's text-to-speech API and pay its per-character audio pricing. ## Principais recursos e capacidades - **Multiple voice presets:** Pick from a roster of built-in voices ranging from bright and conversational to calm and narration-friendly, then hear the same line delivered differently. - **Style instructions from plain text:** Add a short natural-language direction such as "speak slowly and warmly" to influence tone, pace, and emotion without changing the script itself. - **Instant browser playback:** Paste a paragraph or a full script and stream the synthesized audio immediately, with no signup, install, or configuration step. - **Side-by-side auditioning:** Switch voices, styles, and wording back-to-back to judge which combination fits a voiceover, audiobook, or product demo. - **Direct line to the API:** The demo mirrors the same speech generation models exposed through OpenAI's TTS endpoints, so what you hear is a good preview of what an integration will produce. - **Soundwave player:** A soundwave visualization animates while audio plays, and there is a compact embedded player for listening without leaving the page. ## Principais casos de uso - **Cast the right voice for a script (Voiceover creators):** Paste lines of dialogue with short style cues and audition several voices to find the right narrator for a script, audiobook sample, or podcast intro. - **Practice pronunciation with a reference read (Language learners):** Generate an English reference read of a line to hear natural pacing and intonation before you invest time in recording or hiring talent. - **Prototype before integrating the API (Developers):** Test a style prompt and a voice choice in the browser first, then replicate the same settings in code when calling OpenAI's TTS endpoint. - **Rapid copy sanity check (Product marketers):** Turn a product announcement or feature blurb into a spoken preview in seconds, so stakeholders can hear the copy rather than read it. ## Pontos fortes - Completely free and usable without creating an account - Style prompts let you shape delivery with ordinary language instead of technical parameters - Instant side-by-side comparison across voices speeds up casting decisions - Mirrors the production models behind OpenAI's speech API, so previews are representative - No installation, plugins, or local GPU required ## Limitações - The demo is a showcase rather than a full studio — there is no project management, batch export, or voice library management - Long-form narration with fine-grained pacing and emphasis control is limited compared with dedicated TTS suites - Output is tied to OpenAI's hosted models, so there is no offline or self-hosted option - Fatigue from the looping soundwave UI affects some visitors, and access can be interrupted by bot-protection checkpoints ## Perguntas frequentes ### Do I need an OpenAI account or API key to use OpenAI.fm? No. OpenAI.fm is a free, publicly accessible demo from OpenAI that lets visitors preview speech generation in the browser. You need your own API credentials and billing only if you want to call the TTS endpoint from an application. ### Can the voices speak languages other than English? Most gpt-4o-mini-tts voices are English-first, though several are described as multilingual and can speak other languages with varying accents. Quality in non-English languages depends on the specific voice you pick. ### What audio formats does the underlying model support? The API supports audio output formats such as MP3, Opus, AAC, and FLAC. The demo itself plays audio in the browser, so for a downloadable file in a specific format you should use the API. ### Is OpenAI.fm an official OpenAI support channel? No. It is an independent demonstration page for OpenAI's speech technology. It is not an official OpenAI support channel and it does not give access to ChatGPT or any other OpenAI product beyond speech synthesis previews. ### Qual é o tráfego mensal e a tendência de crescimento de OpenAI.fm? OpenAI.fm recebe atualmente 358,99 mil visitas mensais, com variação de tráfego mês a mês de +116,4 mil (taxa de crescimento de +48%). Seu principal mercado de origem é Índia (41,5% de participação), incluindo 210,72 mil visitas diretas/mês e — visitas de busca orgânica/mês. ### O OpenAI.fm é gratuito? Qual é o seu modelo de preços? OpenAI.fm opera com um modelo de preços Grátis. Free to use in the browser with no account required. Costs only apply if you separately call OpenAI's text-to-speech API and pay its per-character audio pricing. As plataformas de cobrança e checkout suportadas incluem: não listado. ### Quais são as melhores alternativas de OpenAI.fm em 2026? Com base no tráfego das categorias e na adequação de recursos do OpenAITools.app, as cinco principais alternativas a OpenAI.fm são: 1. ElevenLabs (42,4 mi visitas/mês); 2. Fish Audio (8,56 mi visitas/mês); 3. F5 TTS (5,79 mil visitas/mês); 4. Speechify (5,46 mi visitas/mês); 5. TTSMaker (1,16 mi visitas/mês). ### Quais plataformas e principais capacidades de IA o OpenAI.fm suporta? OpenAI.fm está classificado em Texto para fala com IA, AI API, Gerador de voz com IA, Ferramentas de desenvolvimento com IA, suporta as seguintes plataformas: Site, e suas principais tags de capacidade incluem: Texto para fala, OpenAI API, Geração de voz, Demo interativa, Síntese de voz. ## Alternativas | Nome da ferramenta | Visitas mensais | Modelo de preços | Comparar | | :--- | :--- | :--- | :--- | | [ElevenLabs](https://openaitools.app/pt/tool/elevenlabs-io) | 42.396.771 | Freemium, Pago, Preço sob consulta | [Comparar](https://openaitools.app/pt/compare/elevenlabs-io-vs-openai-fm) | | [Fish Audio](https://openaitools.app/pt/tool/fish-speech) | 8.557.159 | Freemium | [Comparar](https://openaitools.app/pt/compare/fish-speech-vs-openai-fm) | | [F5 TTS](https://openaitools.app/pt/tool/f5-tts-1) | 5.789 | Grátis | [Comparar](https://openaitools.app/pt/compare/f5-tts-1-vs-openai-fm) | | [Speechify](https://openaitools.app/pt/tool/speechify) | 5.457.475 | Freemium | [Comparar](https://openaitools.app/pt/compare/openai-fm-vs-speechify) | | [TTSMaker](https://openaitools.app/pt/tool/ttsmaker) | 1.158.846 | Freemium | [Comparar](https://openaitools.app/pt/compare/openai-fm-vs-ttsmaker) | | [ttsMP3.com](https://openaitools.app/pt/tool/ttsmp3-com) | 378.881 | Freemium | [Comparar](https://openaitools.app/pt/compare/openai-fm-vs-ttsmp3-com) | | [Listnr AI](https://openaitools.app/pt/tool/listnr-ai) | 235.777 | Freemium | [Comparar](https://openaitools.app/pt/compare/listnr-ai-vs-openai-fm) | | [Miso One](https://openaitools.app/pt/tool/miso-one) | 13.802 | Freemium | [Comparar](https://openaitools.app/pt/compare/miso-one-vs-openai-fm) | | [SpeechGen.io](https://openaitools.app/pt/tool/speechgen-io) | 767.550 | Freemium, Pago | [Comparar](https://openaitools.app/pt/compare/openai-fm-vs-speechgen-io) | | [Crikk](https://openaitools.app/pt/tool/crikk) | 212.116 | Freemium, Teste gratuito, Pago | [Comparar](https://openaitools.app/pt/compare/crikk-vs-openai-fm) | | [Luvvoice](https://openaitools.app/pt/tool/luvvoice-free-text-to-speech) | 1.438.923 | Freemium | [Comparar](https://openaitools.app/pt/compare/luvvoice-free-text-to-speech-vs-openai-fm) | | [Vbee AI Voice](https://openaitools.app/pt/tool/vbee-ai-voice) | 563.444 | Teste gratuito, Preço sob consulta | [Comparar](https://openaitools.app/pt/compare/openai-fm-vs-vbee-ai-voice) | --- Fonte: https://openaitools.app/pt/tool/openai-fm