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Qwen3-Coder-NextvsStep 3.5 Flash

Step 3.5 Flash leads 2 of 2 shared benchmarks. Qwen3-Coder-Next has the larger context window (262K tokens).

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

Shared benchmarks
0 – 2
Step 3.5 Flash leads
Cheaper per token
list price, input + output
Larger context
Qwen3-Coder-Next
262K tokens
Provider uptime (30d)
— · —
Qwen · StepFun
Qwen3-Coder-Next
Qwen · released 2026-02-03
text
Context
262K
Max out
Input /1M
Output /1M
Cached /1M
Scores
3 · 2 core
Step 3.5 Flash
StepFun · released 2026-02-12
text
Context
256K
Max out
Input /1M
Output /1M
Cached /1M
Scores
18 · 5 core
Quality

Benchmark matrix

BenchmarkQwen3-Coder-NextStep 3.5 FlashΔEdge
Reported by both · 2
SWE-bench Verified70.6% 74.4% -3.8 ptStep 3.5 Flash
Terminal-Bench 2.036.2% 51% -14.8 ptStep 3.5 Flash
Only Qwen3-Coder-Next reports · 1
SWE-Bench Pro44.3% not reported
Only Step 3.5 Flash reports · 15
AIME 2025not reported97.3%
AIME 2026not reported96.7% matharena
LMArena Elonot reported1403.7
BrowseCompnot reported51.6%
BrowseComp (with context manager)not reported69%
BrowseComp-ZHnot reported66.9%
BrowseComp-ZH (with context manager)not reported73.7%
GAIA (no file)not reported84.5%
HMMT 2025 (Feb/Nov average)not reported96.2%
IMOAnswerBenchnot reported85.4%
LiveCodeBench v6not reported86.4%
ResearchRubricsnot reported65.3%
Tau2-Benchnot reported88.2%
xbench-DeepSearch 2025.05not reported83.7%
xbench-DeepSearch 2025.10not reported56.3%
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-Coder-Next minus Step 3.5 Flash 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-Coder-NextStep 3.5 FlashEdge
Context window262K tokens256K tokensQwen3-Coder-Next
Max output
Input price / 1M
Output price / 1M
Cached input / 1M
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
ModalitiestexttextTie
Released2026-02-032026-02-12
Cited benchmark scores318
Reliability

Provider status

All providers
More matchups

Qwen3-Coder-Next vs …

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Step 3.5 Flash vs …

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Public benchmarks are a starting point. Run Qwen3-Coder-Next and Step 3.5 Flash on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.