BenchLeader
AlibabaReasoning modelAuto-detected

Qwen3.5 Plus

Best configuration ranks #147 of 610 on the BenchLeader Index at 57.2 ±0.5 (thinking reasoning effort). Last measured 1 Sept 2026. Released 16 Feb 2026.

Blended price
$1.29/M
$0.573 in · $3.44 out
Output speed
48 tok/s
First answer
1.07 s
Context
1M
How it scores by categoryDashed line = average model (50). One step of 15 = one standard deviation.
  1. Overall index57
  2. Coding62
  3. Maths60
  4. Knowledge60

Reasoning-effort configurations

The same model behaves differently depending on how much it is allowed to think. Each row is one setting, scored only on the benchmarks that were run at that setting. “Default” means the publisher did not say which setting was used.

EffortIndexRankSpeedFirst answerChat reply costCategories
thinkingbest57.2#14748 tok/s1.07 s$0.0013Coding 62 · Knowledge 60 · Maths 60
default48 tok/s1.07 s$0.0013Agents & tools 38 · Knowledge 38 · Maths 62 · Reasoning 62

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

BenchmarkthinkingdefaultSource
GPQA Diamond84.8%#81Epoch AI Benchmarking Hub
GPQA Diamond (Vals)not in index87.4%#37Vals AI

Coding

BenchmarkthinkingdefaultSource
LiveCodeBench85.3%#32Vals AI
SWE-bench (Vals)not in index71.2%#57Vals AI

Agents & tools

BenchmarkthinkingdefaultSource
APEX-Agents13.6%#48Mercor

Maths

BenchmarkthinkingdefaultSource
OTIS Mock AIME86.7%#71Epoch AI Benchmarking Hub
AIME (Vals)86.0%#33Vals AI

Knowledge

BenchmarkthinkingdefaultSource
SimpleQA Verified25.4%#60Epoch AI Benchmarking Hub
MMLU-Pro87.2%#34Vals AI
LegalBench85.1%#23Vals AI
CorpFin65.3%#29Vals AI
MedQA95.2%#13Vals AI

Composite

BenchmarkthinkingdefaultSource
Epoch Capabilities Indexnot in index146.8#58Epoch AI Benchmarking Hub

Where to run it

Every provider serving this model through OpenRouter, with throughput and first-token latency measured on live traffic over the last 30 minutes and each provider’s own price. Purple marks the best in each column.

ProviderSpeedFirst tokenInput $/MOutput $/MContextQuantisation
Alibaba Cloud Int.48 tok/s1.07 s$0.300$1.801M

Price history

Listed price per 1M tokens over time, as recorded by OpenRouter for the provider with the longest history.

$0.00$0.660$1.32$1.98$2.64Apr 26May 26Jun 26Jul 26Aug 26
input outputnow $0.300 in · $1.80 out

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$0.00137.3 s
Summarise a 30-page report12,000 / 600$0.008913.6 s
Code edit6,000 / 1,500$0.008632.3 s
Agentic coding session60,000 / 4,000$0.0481.4 min
Structured extraction2,000 / 200$0.00185.2 s

See also

Data as of 9 Sept 2026. Compare these configurations.