Claude Opus 5 vs GPT-5.6 Sol

Change models
Claude Opus 5Anthropic
IndexAll categories, out of 100.
73.8 ±1.9 best
73.0 ±1.9
GapIndex points below the top.
Top
−0.8 · no clear gap
CoverageIndex weight that has results.
100%
100%
SpeedOutput tokens per second.
48/s
64/s best
EloLMArena rating and rank.
1502 best
1457
ReleasedMonth of release.
2026-07
2026-07
Input / 1MUS dollars per 1M input tokens.
$5.00
$4.40 best
Output / 1MUS dollars per 1M output tokens.
$25.00
$22.00 best
Batch output / 1MBatch price per 1M output tokens.
$12.50
$10.00 best
1K chats2K tokens in, 500 out, each.
$22.50
$19.80 best
1K documents20K tokens in, 1K out, each.
$125.00
$110.00 best
1K agent tasks200K tokens in, 20K out, each.
$1,500.00
$1,320.00 best
ContextMaximum tokens in one request.
1M
1.05M best
AgenticMulti-step tasks with tools.
71.6
71.9 best
CodingCode writing and repair.
74.8 best
70.4
ReasoningLogic problems and puzzles.
75.4
76.3 best
MultimodalTasks with images and text.
72.5
72.6 best
KnowledgeFacts and expert knowledge.
73.1 best
72.7
MultilingualTasks in many languages.
63.6
66.4 best
InstructionTasks with strict prompt rules.
55.6
64.5 best
MathMath problems.
74.8
75.1 best

Benchmarks

96 shared
Only Claude Opus 5: 54Only GPT-5.6 Sol: 29
Claude Opus 5
GPT-5.6 Sol
54.9% best7 / 222
49.5%13 / 222
79.3%52 / 217
84.0% best8 / 217
93.9% best14 / 217
93.5%17 / 217
29.1%13 / 214
32.3% best3 / 214
98.9%22 / 200
100.0% best1 / 200
93.2%11 / 199
94.1% best5 / 199
60.9% best7 / 164
59.4%8 / 164
87.0%7 / 149
87.0%7 / 149
TaxEval v2Finance
75.1% best23 / 143
74.8%29 / 143
89.0% best4 / 142
82.6%51 / 142
93.4%7 / 135
95.2% best2 / 135
MMLU ProKnowledge
91.6% best2 / 135
89.1%15 / 135
61.1% best7 / 133
55.4%19 / 133
90.4%8 / 131
92.5% best3 / 131
CorpFin v2Finance
73.2% best1 / 131
64.4%37 / 131
97.5% best5 / 126
96.5%11 / 126
88.4% best11 / 123
80.5%31 / 123
97.1% best6 / 122
93.8%10 / 122
99.0%2 / 116
99.0%2 / 116
56.4%26 / 114
57.1% best22 / 114