Claude Sonnet 5.5 vs Gemini 4 Hydrogen

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IndexAll categories, out of 100.
77.1 ±2.6 best
76.9 ±8.4
GapIndex points below the top.
Top
−0.2 · no clear gap
CoverageIndex weight that has results.
95% best
65%
SpeedOutput tokens per second.
107/s
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EloLMArena rating and rank.
1469
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ReleasedMonth of release.
2026-09
2026-11
Input / 1MUS dollars per 1M input tokens.
$2.00
$1.50 best
Output / 1MUS dollars per 1M output tokens.
$10.00
$7.50 best
Batch output / 1MBatch price per 1M output tokens.
$5.00
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1K chats2K tokens in, 500 out, each.
$9.00
$6.75 best
1K documents20K tokens in, 1K out, each.
$50.00
$37.50 best
1K agent tasks200K tokens in, 20K out, each.
$600.00
$450.00 best
ContextMaximum tokens in one request.
1M
1M
AgenticMulti-step tasks with tools.
77.4
78.5 best
CodingCode writing and repair.
80.6 best
79.1
ReasoningLogic problems and puzzles.
78.0
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MultimodalTasks with images and text.
74.9
80.5 best
KnowledgeFacts and expert knowledge.
71.1
74.3 best
MultilingualTasks in many languages.
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InstructionTasks with strict prompt rules.
41.5
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MathMath problems.
75.9
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Benchmarks

10 shared
Only Claude Sonnet 5.5: 119Only Gemini 4 Hydrogen: 1
Claude Sonnet 5.5
Gemini 4 Hydrogen
51.5% best17 / 165
50.5%19 / 165
41.0% best4 / 28
38.2%7 / 28
71.8%6 / 23
76.1% best4 / 23
25.8%11 / 22
27.6% best8 / 22
63.6% best3 / 22
53.5%10 / 22
55.5% best4 / 21
54.3%5 / 21
52.0%5 / 20
53.4% best3 / 20
59.9% best4 / 12
51.4%9 / 12
83.9% best3 / 11
77.6%6 / 11
61.6%6 / 10
66.6% best4 / 10