Question 1

How do I use the Fireworks AI API?

Accepted Answer

Create an LLM Gateway API key and point any OpenAI-compatible SDK at https://api.llmgateway.io/v1. Set the model to deepseek-v4.1-flash. On pay-as-you-go keys, fireworks/deepseek-v4.1-flash pins every request to Fireworks AI; DevPass coding plans do not support provider pinning. You do not need a separate Fireworks AI account or SDK.

Question 2

Which Fireworks AI models are available?

Accepted Answer

LLM Gateway serves 6 Fireworks AI models, including DeepSeek V4.1 Flash, GLM-5.3 Flash, GLM-5.3, Kimi K3 Fast, Kimi K3. Each model page lists per-token pricing, context window and capabilities.

Question 3

Does Fireworks AI train on API data?

Accepted Answer

No. Fireworks AI's published policy states that API traffic is not used for model training.

Question 4

Where is Fireworks AI based?

Accepted Answer

Fireworks AI is headquartered in United States. LLM Gateway shows each provider's location and data policy so you can route by compliance requirements.

Question 5

What happens if the Fireworks AI API is down?

Accepted Answer

When you request a model without a provider prefix, LLM Gateway retries failed requests on other providers that serve the same model, so an outage at Fireworks AI does not have to take your app down. Send X-No-Fallback: true with a provider-pinned model when every request must reach Fireworks AI.

Fireworks AI API

Data & Privacy

Available Models

DeepSeek V4.1 Flash

GLM-5.3 Flash

GLM-5.3

Kimi K3 Fast

Kimi K3

DeepSeek V4 Flash

Fireworks AI API questions

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