Claude Sonnet 5.5 vs GPT-5.4 Pro

Change models
IndexAll categories, out of 100.
77.2 ±2.6 best
73.3 ±8.7
GapIndex points below the top.
Top
−3.9 · no clear gap
CoverageIndex weight that has results.
95% best
60%
SpeedOutput tokens per second.
107/s best
21/s
EloLMArena rating and rank.
1469
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ReleasedMonth of release.
2026-09
2026-03
Input / 1MUS dollars per 1M input tokens.
$2.00 best
$30.00
Output / 1MUS dollars per 1M output tokens.
$10.00 best
$180.00
Batch output / 1MBatch price per 1M output tokens.
$5.00 best
$90.00
1K chats2K tokens in, 500 out, each.
$9.00 best
$150.00
1K documents20K tokens in, 1K out, each.
$50.00 best
$780.00
1K agent tasks200K tokens in, 20K out, each.
$600.00 best
$9,600.00
ContextMaximum tokens in one request.
1M
1.05M best
AgenticMulti-step tasks with tools.
77.5 best
70.5
CodingCode writing and repair.
80.8
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ReasoningLogic problems and puzzles.
77.8
80.4 best
MultimodalTasks with images and text.
74.4
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KnowledgeFacts and expert knowledge.
71.3 best
67.2
MultilingualTasks in many languages.
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InstructionTasks with strict prompt rules.
41.5
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MathMath problems.
76.1 best
75.3

Benchmarks

11 shared
Only Claude Sonnet 5.5: 117Only GPT-5.4 Pro: 7
Claude Sonnet 5.5
GPT-5.4 Pro
95.6% best4 / 217
94.6%8 / 217
31.4% best7 / 214
30.0%10 / 214
83.9% best17 / 131
83.3%19 / 131
96.5% best11 / 126
94.5%21 / 126
90.1%16 / 122
92.2% best12 / 122
97.8%14 / 116
98.3% best8 / 116
46.5% best39 / 91
46.3%40 / 91
Chess PuzzlesReasoning
59.0%10 / 90
59.0%10 / 90
88.8% best10 / 90
82.5%17 / 90
80.5% best11 / 72
58.5%20 / 72
56.9% best5 / 53
42.7%25 / 53