Fireworks AI unveils Blackwell ultra-fast inference, Nexus Desktop and Sovereign at Forge

Fireworks AI used its inaugural Forge conference on 3 November 2026 to launch inference, desktop routing, post-training and enterprise governance products aimed at running customised open-weight models in production.

In public preview on NVIDIA Blackwell GPUs, Fireworks Ultra-fast reaches up to 1,500 tokens per second on DeepSeek V4.1 Flash, trimming a 30-turn agent loop from 1 minute to 8 seconds. For non-urgent jobs, Background Mode halves standard token rates ($0.30 input and $1.20 output per million tokens standard for DeepSeek V4.1 Flash on the pricing page), paired with Multi-day Prompt Caching, generally available Elastic Burst rate limits and serverless LoRA serving via Specialized Model Inference starting with GLM 5.3 Flash.

For everyday tool routing, Nexus Desktop joins the Nexus CLI inside the Codex app, Claude Desktop and OpenCode, combining open and closed models with spend tracking at $8 per month for Pro and $10 per seat per month for Teams (Team on the pricing page). On the training side, private-preview No Eval converts live inference traces and user feedback signals such as edits and retries into task evaluations and reward models, alongside free supervised, DPO and reinforcement-learning runs on Muse Glimmer 30B through 30 November 2026. For regulated organisations, private-preview Fireworks Sovereign deploys Fireworks’ control plane directly onto customer-owned cloud or data-centre GPUs, building on more than 25,000 customer-environment GPUs already under management.