GPT-5.1 vs Qwen3.5 397B (Reasoning)

Change models
GPT-5.1OpenAI
IndexAll categories, out of 100.
55.3 ±3.7
55.3 ±6.9
GapIndex points below the top.
Top
Top
CoverageIndex weight that has results.
95% best
85%
SpeedOutput tokens per second.
50/s
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EloLMArena rating and rank.
1422
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ReleasedMonth of release.
2025-11
2026-02
Input / 1MUS dollars per 1M input tokens.
$1.25
$0.60 best
Output / 1MUS dollars per 1M output tokens.
$10.00
$3.60 best
Batch output / 1MBatch price per 1M output tokens.
$5.00
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1K chats2K tokens in, 500 out, each.
$7.50
$3.00 best
1K documents20K tokens in, 1K out, each.
$35.00
$15.60 best
1K agent tasks200K tokens in, 20K out, each.
$450.00
$192.00 best
ContextMaximum tokens in one request.
400K best
128K
AgenticMulti-step tasks with tools.
52.4
59.4 best
CodingCode writing and repair.
53.5
54.2 best
ReasoningLogic problems and puzzles.
56.4 best
50.2
MultimodalTasks with images and text.
58.4 best
55.8
KnowledgeFacts and expert knowledge.
57.2 best
56.3
MultilingualTasks in many languages.
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InstructionTasks with strict prompt rules.
57.1
62.7 best
MathMath problems.
57.5
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Benchmarks

7 shared
Only GPT-5.1: 37Only Qwen3.5 397B (Reasoning): 2
GPT-5.1
Qwen3.5 397B (Reasoning)
28.5%87 / 222
29.0% best85 / 222
80.0% best43 / 217
77.3%77 / 217
4.9% best84 / 214
1.7%109 / 214
87.3%58 / 199
89.3% best45 / 199
81.9%66 / 149
95.6% best18 / 149
72.9%33 / 146
78.8% best6 / 146
75.5%48 / 113
77.3% best40 / 113