Fireworks AI vs OpenAI

Text, vision, audio, image, and embedding models, including recent releases such as Kimi K3, GLM 5.2, DeepSeek V4, MiniMax M3, and Qwen3.7 Plus

Industry-leading throughput and latency with fast inference engine

SFT, DPO, and reinforcement fine-tuning of models up to 1T+ parameters, from guided runs through writing your own trainer and RL loop

Drop-in replacement for closed-model APIs - change the base URL to migrate, with the same SFT data format for fine-tuning

H100, H200, B200, B300, and GB300 deployments with per-second billing and autoscaling

Async bulk inference jobs run at scale for less than standard serverless requests

Access to GPT-4o, GPT-4o mini, and other frontier language models

o1 and o3 series models with advanced reasoning capabilities for complex problems

Process text, images, audio, and video inputs with unified models

Structured outputs and tool use for building agents and workflows

Build AI assistants with code interpreter, file search, and custom tools

Customize models on your own data for specialized use cases