Why it matters

Fireworks is open-model inference specialist. Understanding shapes options.

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The architecture

OpenAI-compatible API.

Optimized serving (FireAttention).

Fine-tune + custom models.

Fireworks AI stackOpen modelsLlama + Mixtral + customFireAttentionoptimized kernelsServerless + dedicatedflexiblefireworks.ai; performance-focused; custom kernels + speculative decoding
Fireworks AI.
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How it works end to end

FireAttention custom kernels.

Speculative decoding.

Structured output support.

Function calling.