BenchLeader

Qwen3.8-Flash-Next

Qwen3.8-Flash-Next is an Alibaba open-weights reasoning model, released 26 Aug 2026. Its best configuration ranks #114 of 751 on the BenchLeader Index at 59.9 ±6.0, in the upper half. The ± is the point: 243 other configurations score within that range, so they and this one cannot be told apart on quality alone — price and speed are what separate them. It scores highest in coding (68) and lowest in knowledge (58). At $0.230 per million tokens blended it is cheaper than most ranked models. Output speed of 54 tokens per second puts it slower than most, with a first answer in 39.7 s. Last measured 2 Oct 2026.

Blended price
$0.230/M
$0.150 in · $0.470 out
Output speed
54 tok/s
measured by Artificial Analysis
First answer
40 s
Context
256k
Full answer
49 s
median, reasoning included
Cost per run
$0.372
one full Intelligence Index run
Released
26 Aug 2026
How it scores by categoryDashed line = average model (50). One step of 15 = one standard deviation.
  1. Overall index60
  2. Reasoning60
  3. Coding68
  4. Agents & tools65
  5. Knowledge58
  6. Multimodal63
  7. Long context65
  8. Composite64

How its index has moved

9 Sept 2026 to 3 Oct 2026
536068

The index is recomputed from scratch every day, so a line moves when a new benchmark result lands, when a publisher revises a score, or when the models it is normalised against change. Early movement usually means the score is still settling.

Benchmark results

One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.

Reasoning

Benchmarknot statedSourceTrend
LiveBench Reasoningnot in index87.4%#26LiveBench
GPQA Diamond (AA)not in index92.3%#36Artificial Analysis
Humanity's Last Exam (AA)not in index38.0%#93Artificial Analysis
CritPt11.1%#100Artificial Analysis

Coding

Benchmarknot statedSourceTrend
LMArena WebDev1638#15LMArena
LiveBench Codingnot in index72.5%#52LiveBench
SciCode (AA)not in index50.6%#92Artificial Analysis
Terminal-Bench 4.0 (AA)not in index25.3%#46Artificial Analysis
Terminal-Bench 2.1 (AA)not in index86.1%#21Artificial Analysis

Agents & tools

Benchmarknot statedSourceTrend
LMArena Agent-0.7#33LMArena
LiveBench Agentic Codingnot in index61.6%#11LiveBench
GDPval (AA)not in index55.6%#20Artificial Analysis
τ²-Bench Banking (AA)45.4%#14Artificial Analysis

Maths

Benchmarknot statedSourceTrend
LiveBench Mathematicsnot in index85.8%#49LiveBench

Knowledge

Instruction following

Benchmarknot statedSourceTrend
LiveBench Languagenot in index74.6%#49LiveBench
LiveBench Instruction Followingnot in index77.1%#5LiveBench

Multimodal

Benchmarknot statedSourceTrend
MMMU-Pro79.8%#54Artificial Analysis

Long context

Benchmarknot statedSourceTrend
AA-LCR79.7%#80Artificial Analysis

Composite

Benchmarknot statedSourceTrend
LiveBench76.2%#30LiveBench
AA Intelligence Index39.8#56Artificial Analysis

What a task costs

Estimates from list price, output speed and time to first answer for the best configuration. “With caching” assumes three-quarters of the input is served from the prompt cache. Reasoning tokens are not modelled.

WorkloadTokens in / outCostWith cachingTime
Chat reply400 / 300$0.0002–45.3 s
Summarise a 30-page report12,000 / 600$0.0021–50.9 s
Code edit6,000 / 1,500$0.0016–1.1 min
Agentic coding session60,000 / 4,000$0.011–1.9 min
Structured extraction2,000 / 200$0.0004–43.4 s

See also

Data as of 4 Oct 2026. Compare with another model.

Cite as: BenchLeader, “Qwen3.8-Flash-Next: benchmarks, pricing, speed and rank”, https://www.benchleader.com/models/qwen3-8-flash-next, data as of 4 Oct 2026.