Claude Opus 5.5 vs Gemini 4 Argon

Change models
IndexAll categories, out of 100.
78.6 ±2.4 best
78.5 ±4.3
GapIndex points below the top.
Top
−0.1 · no clear gap
CoverageIndex weight that has results.
95% best
80%
SpeedOutput tokens per second.
76/s best
28/s
EloLMArena rating and rank.
1513
1530 best
ReleasedMonth of release.
2026-09
2026-09
Input / 1MUS dollars per 1M input tokens.
$4.00
$2.00 best
Output / 1MUS dollars per 1M output tokens.
$20.00
$10.00 best
Batch output / 1MBatch price per 1M output tokens.
$10.00
$5.00 best
1K chats2K tokens in, 500 out, each.
$18.00
$9.00 best
1K documents20K tokens in, 1K out, each.
$100.00
$50.00 best
1K agent tasks200K tokens in, 20K out, each.
$1,200.00
$600.00 best
ContextMaximum tokens in one request.
1M
1.05M best
AgenticMulti-step tasks with tools.
74.1
77.3 best
CodingCode writing and repair.
81.8 best
76.7
ReasoningLogic problems and puzzles.
80.8 best
79.8
MultimodalTasks with images and text.
74.1
—
KnowledgeFacts and expert knowledge.
79.2 best
76.5
MultilingualTasks in many languages.
—
—
InstructionTasks with strict prompt rules.
59.6
—
MathMath problems.
77.7 best
75.9

Benchmarks

78 shared
Only Claude Opus 5.5: 79Only Gemini 4 Argon: 8
Claude Opus 5.5
Gemini 4 Argon
61.4% best2 / 222
57.1%4 / 222
84.7% best6 / 217
79.7%45 / 217
90.6%38 / 217
96.4% best2 / 217
31.7% best4 / 214
27.1%17 / 214
100.0%1 / 200
100.0%1 / 200
65.5% best3 / 164
48.3%26 / 164
68.3% best1 / 133
56.2%14 / 133
91.7% best6 / 131
91.3%7 / 131
97.5%5 / 126
98.5% best1 / 126
90.3%6 / 123
91.9% best3 / 123
97.9% best3 / 122
97.1%6 / 122
98.3%8 / 116
99.5% best1 / 116
66.9% best2 / 114
61.8%5 / 114
MedScribeHealthcare
91.4% best1 / 109
87.4%17 / 109
MedCodeHealthcare
49.8%19 / 106
58.8% best3 / 106
72.2%7 / 91
76.0% best3 / 91
Chess PuzzlesReasoning
67.0% best5 / 90
59.0%10 / 90
91.2% best4 / 90
86.0%13 / 90
50.5%7 / 90
54.8% best5 / 90
44.5%6 / 82
49.2% best4 / 82