Introducing AutoEvals: Find the right model for your task

Deploy

DeployFully managed, global, turn-key AI infrastructure. Launch fast with dedicated uptime.

Observe

ObserveMonitor production AI with continuous benchmarking. Compare quality, latency, & cost.

Trace

TraceTrace every step your agents take. Capture LLM calls, tool calls, and framework steps.

Train

TrainCustom models in days, not months. Task-specific models tuned to your data.

Evaluate

EvaluateEvaluate AI model performance with rigorous benchmarks before deploying to production.

HALO

HALOOpen-source agent optimization. Analyze traces, rank failure modes, and ship concrete fixes.

Models Case Studies Pricing

Blog

BlogThe latest posts, updates, and announcements.

Guides

GuidesStep-by-step tutorials and how-to articles.

Articles

ArticlesTechnical articles and insights from our team.

Z.aiText Generation Model

GLM-5.3

Z.ai's GLM-5.3: an open-weight reasoning model for long-horizon agentic and coding tasks, with a 1M-token context and 131K max output. Served on Fireworks' serverless tier with prompt caching, structured outputs, and tool use.

CONTACT

Meet with our research team

Schedule a call with our research team to learn more about how Specialized Language Models can cut costs and improve performance.