OpenAI Alternatives
API access to GPT, o-series reasoning, DALL-E, and Whisper models
OpenAI provides API access to a broad range of AI models.
Explore 120 alternatives to OpenAI across 3 categories. Updated October 2026.
Featured
NanoGPT
One OpenAI-compatible API for 600+ models, with text billed at provider list prices
Pay per prompt, from $0.10
Top OpenAI alternatives at a glance
- Fish Audio. Text-to-speech and voice cloning API, with Fish Speech weights published under a research licence
- LiveKit Agents. Open-source framework for building real-time voice and multimodal AI agents over WebRTC
- Respeecher. Real-time text-to-speech API plus speech-to-speech voice conversion, with licensed voices
- PlayHT. AI voice generator acquired by Meta (July 2025) and shut down (December 2025). See alternatives for text-to-speech.
- SpeechifyAI. Text-to-speech API with low-latency streaming, voice cloning, and 30+ locales
Compare OpenAI with its alternatives
| Product | Pricing Model | Free Tier | Open Source | Hosting | HQ |
|---|---|---|---|---|---|
| OpenAI | Pay-per-use | ✓ | — | Cloud | ๐บ๐ธ United States |
| Fish Audio | Freemium | ✓ | — | Cloud + Self-hosted | ๐บ๐ธ United States |
| LiveKit Agents | Freemium | ✓ | ✓ | Cloud + Self-hosted | ๐บ๐ธ United States |
| Respeecher | Freemium | — | — | Cloud | — |
| PlayHT | — | — | — | — | ๐บ๐ธ United States |
| SpeechifyAI | Freemium | ✓ | — | Cloud | ๐บ๐ธ United States |
| KugelAudio | Pay-per-use | ✓ | — | Cloud + Self-hosted | ๐ฉ๐ช Germany |
| Samtal | — | — | — | Cloud | ๐ธ๐ช Sweden |
| Eleven Labs | Freemium | ✓ | — | Cloud | ๐บ๐ธ United States |
| VoxCPM | Free | ✓ | ✓ APACHE-2.0 | Self-hosted | — |
| Hume AI | Freemium | ✓ | — | Cloud | ๐บ๐ธ United States |
| AssemblyAI | Pay-per-use | ✓ | — | Cloud | ๐บ๐ธ United States |
| MusicGPT | Freemium | ✓ | — | — | — |
| Rime AI | Freemium | ✓ | — | Cloud + Self-hosted | ๐บ๐ธ United States |
| Cartesia | Freemium | ✓ | — | Cloud + Self-hosted | ๐บ๐ธ United States |
| Resemble AI | Pay-per-use | ✓ | — | Cloud + Self-hosted | ๐บ๐ธ United States |
Want alternatives like these in your AI assistant? Try the Infrabase MCP server
๐ Audio
VoxCPM
Tokenizer-free open-source text-to-speech with voice cloning across 30 languages
Deepgram
Build Voice AI into your apps.
๐ง Fine-tuning
LLaMA-Factory
Open-source fine-tuning framework for 100+ LLMs with a web UI
Unsloth
Fine-tune LLMs up to 30x faster with 90% less memory usage
TRL
Hugging Face library for training language models with RLHF, SFT, and DPO
๐ค Inference APIs
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