AI / LLM API – AI dev tools
27 AI dev tools in the category AI / LLM API. AI model APIs and developer tools (hosting, databases, monitoring, email and more) that offer a free tier. Free tiers and limits change often, so confirm the details on the provider's pricing page before you rely on them.
AssemblyAI - Speech-to-text
Speech-to-text. Free credits to start - see pricing page
Cerebras - Llama / Qwen models
Llama / Qwen models. Free tier with rate limits
Cloudflare Workers AI - LLMs (Llama, Mistral, etc.)
LLMs (Llama, Mistral, etc.). 10,000 Neurons/day free
Cloudflare Workers AI - Whisper / image models
Whisper / image models. 10,000 Neurons/day free
Cohere - Command models
Command models. Trial key: 1,000 API calls/month; Command A 20 req/min
Cohere - Embed / Rerank
Embed / Rerank. Trial key: 1,000 API calls/month total
Deepgram - Speech-to-text / TTS
Speech-to-text / TTS. $200 free credit, then pay-as-you-go
DeepInfra - Open models
Open models. See pricing page
DeepSeek API - DeepSeek models
DeepSeek models. Low-cost; see pricing page
ElevenLabs - Text-to-speech
Text-to-speech. 10k credits/month, 3 Studio projects (no commercial license)
Fireworks AI - Open models
Open models. See pricing page
Google AI Studio (Gemini API) - Gemini Flash models
Gemini Flash models. Free tier with rate limits
Google AI Studio (Gemini API) - Gemini Pro models
Gemini Pro models. Free tier availability varies by model
Google AI Studio (Gemini API) - Gemma open models
Gemma open models. Free tier
Groq - Llama models
Llama models. Free tier with per-model rate limits
Groq - Whisper (speech-to-text)
Whisper (speech-to-text). whisper-large-v3: 20 requests/min, 2K requests/day
Jina AI - Embeddings / Reader
Embeddings / Reader. Free API key tokens - see pricing page
Mistral AI - Codestral
Codestral. See pricing page
Mistral AI - Mistral Embed
Mistral Embed. Free experiment tier
Mistral AI - Mistral models (La Plateforme)
Mistral models (La Plateforme). Free experiment tier
NVIDIA NIM (build.nvidia.com) - Hosted model endpoints
Hosted model endpoints. Free API access for prototyping (developer program)
OpenRouter - Models tagged :free
Models tagged :free. Free variants with daily request limits
Replicate - Community models
Community models. See pricing page
Scaleway Generative APIs - Open models
Open models. Free tokens to start - see pricing page
Together AI - Open models
Open models. See pricing page
Voyage AI - Embedding models
Embedding models. First 200M tokens free per account (voyage-4 family)
xAI API - Grok models
Grok models. See pricing page