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Umans Qwen3.8 27B (lab) Playground Retired
umans-qwen3.8-27b-lab · Qwen
playground experiment; the Qwen3.8 27B lab window ran Aug 18 to 21, 2026
retired Aug 21, 2026 · weights ↗
Retired
248.3tok/s
throughput · p50 · whole period
1.89s
TTFT · p50 · whole period
100.00%
uptime · whole period

Qwen3.8 27B as a Labs experiment, open for a short test window: temporary, not a permanent id. Served from Qwen's official FP8 checkpoint: a compact dense model with native image and video understanding, built for coding and long-horizon agentic tasks on a 256K context window. It thinks by default at xhigh effort; reasoning can be tuned down (low, medium) or turned off (none). Access is seat-gated through the Labs page while an experiment is live. It is offered at limited capacity and low availability, so expect it to be flaky and to go down under load: crash it, give it a moment, and try again. For production work we recommend umans-coder or umans-deepseek-v4-pro-0813.

Aug 18, 2026retired Aug 21, 2026Aug 23, 2026
Trends

Speed over its final 90 days

daily medians · dashed line = target
throughput p50 · output tokens per second, higher is better
peak 307.7 tok/s · Aug 20final 276.2 tok/s
Aug 18, 2026retired Aug 21, 2026Aug 23, 2026
TTFT p50 · time to first token, lower is better
best 1.66s · Aug 18final 2.11s
Aug 18, 2026retired Aug 21, 2026Aug 23, 2026
Changelog

Events for Umans Qwen3.8 27B (lab)

incl. gateway-wide announcements
Aug 212026
Playground closed: Umans Qwen3.8 27B Testing
The Qwen3.8 27B lab window closed on August 21, 2026 (extended two days past the announced August 19). Thanks to everyone who pushed it - text, images, and the xhigh thinking dial - and shared findings. The experiment answered its framing question and the model does not earn a permanent slot right now: umans-qwen3.8-27b-lab is retired to the past-models list, and there is no successor id. For production work we recommend umans-coder or umans-deepseek-v4-pro-0813.
Aug 182026
New Labs experiment: Umans Qwen3.8 27B Testing
A new lab opened on umans-qwen3.8-27b-lab: Qwen3.8 27B served from Qwen's official FP8 checkpoint, a compact dense model with native image and video understanding and a 256K context window, thinking at xhigh effort by default (dial to low or medium, or turn thinking off). Free and seat-gated while the experiment runs, served at limited capacity and low availability: it is a lab, so expect it to be flaky and to go down under load. Crash it, give it a moment, and try again. The window closes August 19, 2026.