ModelsCompareBest forBenchmarksStatusPricingAPI
Compare / head-to-head

Qwen3.5 397B-A17BvsQwen3.6 27B

Qwen3.6 27B leads 3 of 5 shared benchmarks. Both offer a 262K-token context window.

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
2 – 3
Qwen3.6 27B leads
Cheaper per token
list price, input + output
Larger context
Tie
both 262K tokens
Provider uptime (30d)
Qwen
Qwen3.5 397B-A17B
Qwen · released 2026-02-15
textvision
Context
262K
Max out
Input /1M
$0.172
Output /1M
$1.03
Cached /1M
Scores
8 · 7 core
Qwen3.6 27B
Qwen · released 2026-04-21
textvision
Context
262K
Max out
Input /1M
Output /1M
Cached /1M
Scores
6 · 5 core
Quality

Benchmark matrix

BenchmarkQwen3.5 397B-A17BQwen3.6 27BΔEdge
Reported by both · 5
SWE-bench Verified76.4% 77.2% -0.8 ptQwen3.6 27B
GPQA Diamond88.4% 87.8% +0.6 ptQwen3.5 397B-A17B
MMLU-Pro87.8% 86.2% +1.6 ptQwen3.5 397B-A17B
FrontierMath Tiers 1-3 v2 (Epoch AI run)29.5% epoch35.1% epoch-5.6 ptQwen3.6 27B
OTIS Mock AIME 2024-2025 (Epoch AI run)88.9% epoch91.1% epoch-2.2 ptQwen3.6 27B
Only Qwen3.5 397B-A17B reports · 2
AIME 202694.2% matharenanot reported
LMArena Elo1438.3 not reported
Only Qwen3.6 27B reports · 0
Qwen3.6 27B reports nothing Qwen3.5 397B-A17B does not.
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Qwen3.5 397B-A17B minus Qwen3.6 27B in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecQwen3.5 397B-A17BQwen3.6 27BEdge
Context window262K tokens262K tokensTie
Max output
Input price / 1M$0.172
Output price / 1M$1.03
Cached input / 1M
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$1.2
Modalitiestext · visiontext · visionTie
Released2026-02-152026-04-21
Cited benchmark scores86
Reliability

Qwen status

All providers
More matchups

Qwen3.5 397B-A17B vs …

Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run Qwen3.5 397B-A17B and Qwen3.6 27B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.