LLM APIs · B-tier

Fireworks

Fast serverless inference for open models, with compound systems and fine-tunes.

External model signals

Fireworks is scored here as a product. Two public boards rank the models it serves. Token usage informs momentum. Blind votes inform capability. Their numbers stay on their sites.

OpenRouter rankings. OpenRouter ranks models by tokens processed through the OpenRouter API. OpenRouter states that a higher token total shows how much a model is used, not which model is best for a task. That usage informs momentum.
Arena (LMArena leaderboard). Arena, also called LMArena, ranks models by blind human votes. People compare anonymous answers, and only those anonymous votes count toward the public board. Arena fits the votes with a Bradley-Terry model. Those votes inform capability. Method: Arena FAQ.

Checked 14 Oct 2026. The OpenRouter rankings page showed usage through 13 Oct 2026. Rankings data is licensed CC BY 4.0. The figures move, so StackPick links the boards. Rankings data: CC BY 4.0. How these boards enter the score.

Best for

Production traffic on open models when you want serverless, not a cluster.

What it is

Fireworks is a serverless inference platform for open models, including faster “compound” setups and fine-tunes. Builders use it as an alternative to running vLLM themselves. Compare it with Groq when you care about a specific model more than raw speed.

inferenceserverlessopen-modelsLLM APIs

Score breakdown

Capability 40%82
Ease 25%74
Value 20%82
Momentum 15%76

Pricing

Freemium

Starting price: check site

Usage-based with introductory credits. Check the pricing page; do not assume a permanent free tier.

Dates

Released 2023 (year precision).

Added to StackPick 14 Oct 2026.

Alternatives

A-tier · 80

Together AI

Serving and fine-tuning open weights without operating GPUs.

A-tier · 85

Groq

Chat and voice products where time-to-first-token is the constraint.

B-tier · 76

Cerebras Inference

Low-latency open-model inference when you are already benchmarking Groq.

Questions

What is Fireworks best for?

Production traffic on open models when you want serverless, not a cluster.

How much does Fireworks cost?

Freemium. Starting price: check site. Usage-based with introductory credits. Check the pricing page; do not assume a permanent free tier.

What are alternatives to Fireworks?

Together AI, Groq, Cerebras Inference are the alternatives we file next to it. Open a comparison when one exists.

How do model leaderboards relate to Fireworks?

Fireworks is scored here as a product. OpenRouter rankings (https://openrouter.ai/rankings) inform momentum from token usage. Arena (https://arena.ai) informs capability from blind votes on the models it serves. Figures stay on those sites.