Swift Qwen 3.8 27B (Thinking)
Swift Qwen 3.8 27B is UkisAI’s reasoning-efficiency fine-tune on Qwen 3.8 27B: up to 58 percent fewer thinking tokens at under one percent performance loss and roughly twice the throughput on reasoning tasks. NVFP4 quantization with 262,000 tokens of context, MTP head for speculative decoding, and documented tool use — license with a commercial ARR threshold.
- Restricted Weights
- Workstation
- vLLM
- Text
- Vision
- Batch
Sovereign Risk: MEDIUM This checkpoint is a UkisAI fine-tune and an NVFP4 quantization of Qwen/Qwen3.8-27B. The base lineage is documented, but the weights are distributed under the gated Swift Open License v1.0 with an ARR threshold and are optimized for Blackwell/vLLM deployment — provenance is therefore clear, but not fully open in the OSS sense.
Key metrics
Score · Latency · Cost · Quality
- Total Score Gold
- 80.48
- Routine
- 49.15
- Reasoning
- 31.33
- LLM Judge Avg
- 4.09 / 5
- 100 Coverage
- Avg Task Duration
- 110.61s
- Batch
- Token Rate
- 15.96tok/s
- Output Rate
- P95 Latency
- 290.93s
- Top 5 %
- Total Tokens
- 115800
- Output Volume
- Cost per 1K
- $0
- USD / 1K Requests
- Benchmark Cost
- $0
- Total · 115800 tok
Benchmark modules
10 modules · weighted · vs. model median & top performer
Token efficiency & latency
Consumption per module vs. model median
Token consumption per module
Performance profile
Key metrics – legend
Score
- Total Score
- Overall score derived from Routine and Reasoning scores. Basis for the fleet rank and tier assignment (Gold / Silver / Bronze / Standard).
- Routine
- Score for standard tasks: code generation, text transformation, structured outputs. Weighted by task complexity.
- Reasoning
- Score for analytical and logical tasks: multi-step problem solving, mathematical reasoning, structured argumentation.
- Rank
- Position in the fleet comparison, sorted by Total Score. Refers to the snapshot at the time of testing.
LLM Judge
- LLM Judge Ø
- Average quality rating by an independent judge model on a scale of 1–5.
- Coverage
- Share of tasks for which a judge rating is available. 100% means all responses were evaluated.
Latency & speed
- Avg. Task Duration
- Average time per task from the first to the last token of the response, measured across all benchmark tasks.
- Token Rate
- Output speed in tokens per second. Relevant for interactive applications and real-time streaming.
- P95 Latency
- 95th percentile of response times — shows outliers. Lower values mean fewer long wait times in edge cases.
Cost
- Cost per 1K
- API price per 1,000 output tokens in US dollars. Basis for cost calculation in production use.
- Benchmark Cost
- Total cost for the complete benchmark run of this model.