Claude Opus 4.6 vs Claude Sonnet 4.6

Change models
IndexAll categories, out of 100.
58.0 ±3.0 best
57.0 ±2.5
GapIndex points below the top.
Top
−1.0 · no clear gap
CoverageIndex weight that has results.
95%
100% best
SpeedOutput tokens per second.
36/s
44/s best
EloLMArena rating and rank.
1497 best
1458
ReleasedMonth of release.
2026-02
2026-02
Input / 1MUS dollars per 1M input tokens.
$5.00
$3.00 best
Output / 1MUS dollars per 1M output tokens.
$25.00
$15.00 best
Batch output / 1MBatch price per 1M output tokens.
$12.50
$7.50 best
1K chats2K tokens in, 500 out, each.
$22.50
$13.50 best
1K documents20K tokens in, 1K out, each.
$125.00
$75.00 best
1K agent tasks200K tokens in, 20K out, each.
$1,500.00
$900.00 best
ContextMaximum tokens in one request.
1M
1M
AgenticMulti-step tasks with tools.
57.8
59.7 best
CodingCode writing and repair.
59.2 best
58.9
ReasoningLogic problems and puzzles.
55.3
56.4 best
MultimodalTasks with images and text.
52.6
53.9 best
KnowledgeFacts and expert knowledge.
61.8 best
57.2
MultilingualTasks in many languages.
—
56.6
InstructionTasks with strict prompt rules.
30.7 best
27.5
MathMath problems.
63.8 best
54.1

Benchmarks

34 shared
Only Claude Opus 4.6: 30Only Claude Sonnet 4.6: 47
Claude Opus 4.6
Claude Sonnet 4.6
19.1% best116 / 222
13.3%131 / 222
67.0%130 / 217
68.3% best122 / 217
88.4% best54 / 217
78.8%93 / 217
2.8% best101 / 214
0.9%124 / 214
91.1% best58 / 200
71.1%98 / 200
84.0% best86 / 199
79.9%100 / 199
45.8% best34 / 164
38.6%58 / 164
84.8% best58 / 149
79.5%70 / 149
44.6% best87 / 146
41.2%101 / 146
91.3% best22 / 141
89.9%31 / 141
57.6% best61 / 123
51.5%65 / 123
80.8% best14 / 114
79.6%23 / 114
72.5% best69 / 113
70.6%73 / 113
47.0% best37 / 91
32.8%65 / 91
Chess PuzzlesReasoning
21.0%59 / 90
23.0% best56 / 90
25.0% best37 / 80
16.0%56 / 80
53.0% best17 / 77
49.0%22 / 77
82.0% best33 / 75
79.2%40 / 75
40.7% best7 / 69
32.4%16 / 69
90.0% best2 / 64
80.0%6 / 64