Claude Sonnet 5.5 vs GPT-6 Sol

Change models
GPT-6 SolOpenAI
IndexAll categories, out of 100.
77.2 ±2.6 best
72.8 ±2.2
GapIndex points below the top.
Top
−4.4
CoverageIndex weight that has results.
95%
100% best
SpeedOutput tokens per second.
107/s best
61/s
EloLMArena rating and rank.
1469 best
1397
ReleasedMonth of release.
2026-09
2026-09
Input / 1MUS dollars per 1M input tokens.
$2.00
$2.00
Output / 1MUS dollars per 1M output tokens.
$10.00
$10.00
Batch output / 1MBatch price per 1M output tokens.
$5.00
$5.00
1K chats2K tokens in, 500 out, each.
$9.00
$9.00
1K documents20K tokens in, 1K out, each.
$50.00
$50.00
1K agent tasks200K tokens in, 20K out, each.
$600.00
$600.00
ContextMaximum tokens in one request.
1M
1.05M best
AgenticMulti-step tasks with tools.
77.5 best
68.6
CodingCode writing and repair.
80.8 best
73.9
ReasoningLogic problems and puzzles.
77.8 best
76.1
MultimodalTasks with images and text.
74.4 best
70.1
KnowledgeFacts and expert knowledge.
71.3
71.9 best
MultilingualTasks in many languages.
—
65.5
InstructionTasks with strict prompt rules.
41.5
65.3 best
MathMath problems.
76.1 best
75.8

Benchmarks

72 shared
Only Claude Sonnet 5.5: 56Only GPT-6 Sol: 22
Claude Sonnet 5.5
GPT-6 Sol
55.0% best6 / 222
47.9%18 / 222
82.7%23 / 217
83.7% best10 / 217
95.6% best4 / 217
94.3%10 / 217
31.4% best7 / 214
30.9%8 / 214
100.0%1 / 200
100.0%1 / 200
51.5%17 / 164
54.5% best13 / 164
66.9% best4 / 133
50.4%27 / 133
83.9%17 / 131
89.6% best10 / 131
96.5% best11 / 126
95.5%17 / 126
92.4% best2 / 123
87.8%12 / 123
90.1% best16 / 122
90.0%17 / 122
97.8%14 / 116
97.8%14 / 116
61.0% best6 / 114
57.6%18 / 114
MedScribeHealthcare
91.1% best3 / 109
82.0%52 / 109
MedCodeHealthcare
52.9% best12 / 106
47.1%36 / 106
46.5%39 / 91
60.7% best17 / 91
Chess PuzzlesReasoning
59.0% best10 / 90
56.0%15 / 90
88.8%10 / 90
89.8% best8 / 90
48.1% best12 / 90
28.8%57 / 90
42.0% best10 / 82
15.0%62 / 82