GPT-5.6 Sol vs GPT-6 Sol

Change models
GPT-6 SolOpenAI
IndexAll categories, out of 100.
73.0 ±1.9 best
72.8 ±2.2
GapIndex points below the top.
Top
−0.2 · no clear gap
CoverageIndex weight that has results.
100%
100%
SpeedOutput tokens per second.
64/s best
61/s
EloLMArena rating and rank.
1457 best
1397
ReleasedMonth of release.
2026-07
2026-09
Input / 1MUS dollars per 1M input tokens.
$4.40
$2.00 best
Output / 1MUS dollars per 1M output tokens.
$22.00
$10.00 best
Batch output / 1MBatch price per 1M output tokens.
$10.00
$5.00 best
1K chats2K tokens in, 500 out, each.
$19.80
$9.00 best
1K documents20K tokens in, 1K out, each.
$110.00
$50.00 best
1K agent tasks200K tokens in, 20K out, each.
$1,320.00
$600.00 best
ContextMaximum tokens in one request.
1.05M
1.05M
AgenticMulti-step tasks with tools.
71.9 best
68.6
CodingCode writing and repair.
70.4
73.9 best
ReasoningLogic problems and puzzles.
76.3 best
76.1
MultimodalTasks with images and text.
72.6 best
70.1
KnowledgeFacts and expert knowledge.
72.7 best
71.9
MultilingualTasks in many languages.
66.4 best
65.5
InstructionTasks with strict prompt rules.
64.5
65.3 best
MathMath problems.
75.1
75.8 best

Benchmarks

77 shared
Only GPT-5.6 Sol: 48Only GPT-6 Sol: 17
GPT-5.6 Sol
GPT-6 Sol
49.5% best13 / 222
47.9%18 / 222
84.0% best8 / 217
83.7%10 / 217
93.5%17 / 217
94.3% best10 / 217
32.3% best3 / 214
30.9%8 / 214
EuroEval PolishMultilingual
62.8% best11 / 209
62.4%14 / 209
100.0%1 / 200
100.0%1 / 200
EuroEval SwedishMultilingual
74.9% best5 / 195
71.3%6 / 195
EuroEval GermanMultilingual
63.6% best5 / 191
63.1%6 / 191
70.5% best5 / 182
70.1%6 / 182
EuroEval FrenchMultilingual
72.0% best7 / 178
70.4%9 / 178
EuroEval SpanishMultilingual
66.3% best6 / 176
65.6%7 / 176
EuroEval DutchMultilingual
68.7% best6 / 175
67.5%7 / 175
EuroEval ItalianMultilingual
70.1% best7 / 174
69.9%8 / 174
59.4% best8 / 164
54.5%13 / 164
55.4% best19 / 133
50.4%27 / 133
92.5% best3 / 131
89.6%10 / 131
96.5% best11 / 126
95.5%17 / 126
80.5%31 / 123
87.8% best12 / 123
93.8% best10 / 122
90.0%17 / 122
99.0% best2 / 116
97.8%14 / 116