Announcing our Series D and $1B ARR

Fireworks Blog

Fireworks closes series D, 1.5 billion in funding at a 17.5 Billion valuation

Announcing our Series D and $1B ARR

Today, Fireworks announced a $1.505 billion Series D at a $17.5 billion valuation, led by Atreides Management, Index Ventures, and TCV, with participation from Evantic Capital, Lightspeed Venture Partners, Nvidia, 20VC, Bessemer Venture Partners, Menlo Ventures, and others.

DeepSeek V3.1
Model Releases
8/26/2025

DeepSeek V3.1 now on Fireworks AI!

Eval Driven Development with Claude Code
Developer Experience
8/25/2025

LLM Eval Driven Development with Claude Code

Your AI Benchmark is Lying to You. Here's How We Caught It
Benchmarks
8/15/2025

Your AI Benchmark is Lying to You. Here's How We Caught It

Test driven agent development with eval protocol
Developer Experience
8/14/2025

Test-Driven Agent Development with Eval Protocol

Quality first: how Fireworks.ai is the go-to place for gpt-oss
Developer Experience
8/12/2025

Quality first: how Fireworks.ai is the go-to place for gpt-oss

GPT-OSS Models
Model Releases
8/5/2025

Introducing OpenAI gpt-oss (20b & 120b)

Eval Protocol
Model Releases
8/4/2025

Announcing Eval Protocol

Qwen 3 Decoded
Model Releases
8/1/2025

Qwen3 Decoded: Choosing the Right Model For Your Task

Kimi K2 Deep Dive
Developer Experience
8/1/2025

Kimi K2: Deep Dive into model performance and use-cases

Fireworks AI Batch API
Model Releases
7/31/2025

Run bulk async workloads with Fireworks Batch API

Real-world leaderboard
Benchmarks
7/30/2025

Fireworks Real-World Benchmarks: Find the Best OSS Model for the Job

Introducing Vision-Language Model Fine-tuning
Model Releases
7/29/2025

Introducing Vision-Language Model Fine-tuning: Tailor VLMs to Your Domain

Notion
Case Studies
7/25/2025

How Notion Cuts Latency 4x and Scales Enterprise AI Workflows with Fireworks AI

QK-Clip
Developer Experience
7/22/2025

A Deep Dive into MLA training/inference difference and why QK-Clip from Kimi is such an elegant idea

VibeRL: When AI Trains AI
Model Releases
7/22/2025

VibeRL: When AI Trains AI

Sentient & Fireworks Powers Decentralized AI At Viral Scale
Case Studies
7/17/2025

Sentient & Fireworks Powers Decentralized AI At Viral Scale

Fireworks Sagemaker
Model Releases
7/15/2025

Fireworks AI Now Supports Amazon SageMaker

Deep-dive into MuonClip: Fixing Attention Score Explosions in Transformer Training
Developer Experience
7/15/2025

Deep-dive into MuonClip: Fixing Attention Score Explosions in Transformer Training

Understanding Function Calling: The Bridge to Agentic AI
Developer Experience
7/11/2025

Understanding Function Calling: The Bridge to Agentic AI

Using Model as Judge for Reward in Reinforcement Fine Tuning
Developer Experience
7/10/2025

Using Model-as-a-Judge for Reward in Reinforcement Fine Tuning

Flux Kontext on Fireworks
Model Releases
7/9/2025

Introducing FLUX.1 Kontext on Fireworks