Solutions
Every LLM API, aggregated
InferAll aggregates 190+ AI models from OpenAI, Anthropic, Google, NVIDIA, Replicate, and Runway behind a single API. Compare models side-by-side, switch between providers with a parameter change, and get one consolidated bill.
Get your API key — no credit card requiredModels by provider
Llama 3.1 70B, Mixtral, Nemotron, CodeLlama
Gemini 2.5 Flash, Gemini 2.5 Pro, Veo 3
GPT-4o, o1, DALL-E 3, GPT-4 Turbo
Claude Sonnet 4, Opus, Haiku
Flux Pro, Stable Diffusion XL
Gen-4.5, Kling 3.0, Veo 3
Why aggregate AI APIs?
The AI model landscape changes weekly. New models launch, pricing shifts, capabilities expand. Building directly against individual provider APIs locks you into their ecosystem and makes it painful to evaluate alternatives.
An LLM API aggregator decouples your application from any single provider. Test Claude against GPT-4o by changing a parameter, not rewriting your integration. Route production traffic to the cheapest model that meets your quality bar. Fall back to alternatives when a provider has an outage.
InferAll provides this aggregation layer with zero markup on token prices for premium models. The 110+ free models on NVIDIA NIM cover most development and testing needs at zero cost.
Compare models instantly
# Same prompt, different models — just change the provider and model
curl https://api.inferall.ai/ai/v1/generate \
-H "Authorization: Bearer ifu_..." \
-d '{"provider":"anthropic","model":"claude-sonnet-4-6",
"messages":[{"role":"user","content":"Explain TCP"}]}'
curl https://api.inferall.ai/ai/v1/generate \
-H "Authorization: Bearer ifu_..." \
-d '{"provider":"openai","model":"gpt-4o",
"messages":[{"role":"user","content":"Explain TCP"}]}'
curl https://api.inferall.ai/ai/v1/generate \
-H "Authorization: Bearer ifu_..." \
-d '{"provider":"nvidia","model":"meta/llama-3.1-70b-instruct",
"messages":[{"role":"user","content":"Explain TCP"}]}'Common questions
What is an LLM API aggregator?
A single endpoint that routes requests to multiple AI providers — OpenAI, Anthropic, Google, NVIDIA, and others — so you switch models by changing a parameter, not rewriting your integration. InferAll aggregates 190+ models behind one API key.
Is the free tier actually free?
Yes. The 110+ NVIDIA NIM open-source models (Llama 3.1, Mixtral, Nemotron, and more) are $0. No credit card required to start. Premium providers (OpenAI, Anthropic, Google) bill at the provider's published rate with zero markup.
How do I switch between providers?
Change provider and model in the request body. The request shape is identical across all providers — switching from Claude to GPT-4o to Llama is one parameter change.
Does it work with the OpenAI SDK?
Yes — set base_url to https://api.inferall.ai/v1 and your InferAll key. Existing OpenAI SDK code works unchanged. Same for the Anthropic SDK via ANTHROPIC_BASE_URL.
What happens if a provider goes down?
InferAll includes automatic fallback. If your primary provider errors, times out, or rate-limits, the gateway retries the next provider in the chain. Configurable per-account.