Claude Opus 5.5 vs GPT-5.6 Sol
Change modelsClaude Opus 5.5Anthropic
GPT-5.6 SolOpenAI
IndexAll categories, out of 100.
78.6 ±2.4 best
73.0 ±1.9
GapIndex points below the top.
Top
−5.6
CoverageIndex weight that has results.
95%
100% best
SpeedOutput tokens per second.
76/s best
64/s
EloLMArena rating and rank.
1513 best
1457
ReleasedMonth of release.
2026-09
2026-07
Input / 1MUS dollars per 1M input tokens.
$4.00 best
$4.40
Output / 1MUS dollars per 1M output tokens.
$20.00 best
$22.00
Batch output / 1MBatch price per 1M output tokens.
$10.00
$10.00
1K chats2K tokens in, 500 out, each.
$18.00 best
$19.80
1K documents20K tokens in, 1K out, each.
$100.00 best
$110.00
1K agent tasks200K tokens in, 20K out, each.
$1,200.00 best
$1,320.00
ContextMaximum tokens in one request.
1M
1.05M best
AgenticMulti-step tasks with tools.
74.1 best
71.9
CodingCode writing and repair.
81.8 best
70.4
ReasoningLogic problems and puzzles.
80.8 best
76.3
MultimodalTasks with images and text.
74.1 best
72.6
KnowledgeFacts and expert knowledge.
79.2 best
72.7
MultilingualTasks in many languages.
—
66.4
InstructionTasks with strict prompt rules.
59.6
64.5 best
MathMath problems.
77.7 best
75.1
Benchmarks
78 sharedOnly Claude Opus 5.5: 79Only GPT-5.6 Sol: 47
Claude Opus 5.5
GPT-5.6 Sol