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A · open · Qwen

Qwen3.5 397B-A17B

Alibaba

B · open · Qwen

Qwen3.8 Max

Alibaba

0:15

overall capability wins (0 ties across 15 scored). Qwen3.8 Max leads overall.

  • Reasoning0:6
  • Coding0:3
  • Arena0:1
  • Tool use0:2
  • Composite indices0:2
  • Pricing3:0
  • Speed0:1
  • Specs0:3

Verdict

Qwen3.8 Max leads coding (widest gap: +271.7 on WebDev Elo); Qwen3.8 Max ranks higher on LMArena (+39 Elo); Qwen3.8 Max offers ~3.8x larger context (1M vs 262K).

  • Qwen3.8 Max leads coding (widest gap: +271.7 on WebDev Elo)
  • Qwen3.8 Max ranks higher on LMArena (+39 Elo)
  • Qwen3.8 Max offers ~3.8x larger context (1M vs 262K)
  • Qwen3.8 Max allows ~4.0x more max output (131K vs 33K)
  • Qwen3.5 397B-A17B is ~5.0x cheaper on a blended token basis than Qwen3.8 Max

Cost for 1M in + 250K out

Illustrative chat workload at primary-provider list prices.

Qwen3.5 397B-A17B
$0.70
Qwen3.8 Max
$3.50

Qwen3.5 397B-A17B is about 5.0x cheaper on this workload.

Price per 1M tokens

Full comparison

Organization

Alibaba

Alibaba

Family

Qwen

Qwen

License

Apache 2.0

Qwen3.8-Max License

Open weights

Yes

Yes

Release

Mar 1, 2026

Aug 3, 2026

Knowledge cutoff

-

-

API / provider

Together / Fireworks (ref.)

Alibaba Cloud

Modalities

text → text

text, image, video → text

Specs

Context window

262K

1M

B +738K

Max output

33K

131K

B +98K

Parameters

397B (17B act.)

2.4T (95B act.)

B +2K

Pricing

Input $/1M

$0.40

$2

A +$1.60

Output $/1M

$1.20

$6

A +$4.80

Blended $/1M (3∶1)

$0.60

$3

A +$2.40

Speed

tok/s

75

86

B +11

TTFT (s)

0.4

0.4

tie

Reasoning

MMLU-Pro

—

—

—

GPQA Diamond

89.3

92.8

B +3.5 pts

Humanity's Last Exam

29.0

43.1

B +14.1 pts

AIME 2025

—

—

—

MATH-500

—

—

—

Humanity's Last Exam (with tools)

—

—

—

AA-Omniscience Accuracy

30.8

31.7

B +0.9 pts

AA-LCR v1.1

77.3

80.3

B +3.0 pts

CritPt

1.7

17.7

B +16.0 pts

MMMU-Pro

77.3

82.8

B +5.5 pts

IFBench

78.8

—

—

Chartography

—

—

—

Chartography (With Tools)

—

—

—

Coding

SWE-bench Verified

—

—

—

SWE-bench Pro

—

67.7

—

SWE-bench Multilingual

—

—

—

LiveCodeBench

—

—

—

Terminal-Bench 2.1

51.3

81.3

B +30.0 pts

Aider Polyglot

—

—

—

Terminal-Bench 3

—

—

—

BigCodeBench

—

—

—

SciCode

44.8

52.1

B +7.3 pts

CursorBench

—

—

—

SWE-Rebench

59.9

—

—

NL2Repo-Bench

—

55.9

—

DeepSWE

—

56.6

—

WebDev Arena

1,399

1,671

B +272 Elo

Terminal-Bench 4.0

—

—

—

CursorBench 4.0

—

—

—

FrontierCode v1.1 (Main)

—

—

—

Arena

LMArena Elo

1,442

1,481

B +39 Elo

Qwen3.5 397B-A17B

Context
262K / 33K out
Parameters
397B (17B act.)
Price
$0.40 / $1.20
Speed
75 tok/s · 0.4s TTFT
Modalities
text → text
License
Apache 2.0

Large open MoE from the Qwen3.5 line under Apache 2.0.

Qwen3.8 Max

Context
1M / 131K out
Parameters
2.4T (95B act.)
Price
$2 / $6
Speed
86 tok/s · 0.4s TTFT
Modalities
text, image, video → text
License
Qwen3.8-Max License

Alibaba's Aug 2026 Max flagship (2.4T MoE / 95B active) — frontier agentic coding via QwenCloud / DashScope with 1M multimodal context and $2/$6 API pricing. Open weights released Aug 12, 2026 as Qwen3.8-2.4T-A95B (text-only, thinking-mandatory, Qwen3.8-Max license); the hosted version adds vision input, non-thinking mode, and built-in tools.

Benchmark charts

Winner bars are emphasized. Per-benchmark deltas sit above each chart.

Reasoning & knowledge

GPQA: B +3.5HLE: B +14.1CritPt: B +16.0AA-LCR: B +3.0Omniscience Acc.: B +0.9MMMU-Pro: B +5.5

Coding

TermBench: B +30.0SciCode: B +7.3WebDev Elo: B +272

Tool use & function calling

Toolathlon V.: B +31.8τ³-Banking: B +34.4

Arena

Arena Elo: B +39

Composite indices

AA Index: B +27.8AA Index v4.3: B +26.3

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