Claude Opus 5.5 vs GPT-6.1 Sol
Change modelsClaude Opus 5.5Anthropic
GPT-6.1 SolOpenAI
IndexAll categories, out of 100.
78.6 ±2.4 best
78.0 ±2.2
GapIndex points below the top.
Top
−0.6 · no clear gap
CoverageIndex weight that has results.
95%
100% best
SpeedOutput tokens per second.
76/s best
34/s
EloLMArena rating and rank.
1513 best
1446
ReleasedMonth of release.
2026-09
2026-09
Input / 1MUS dollars per 1M input tokens.
$4.00
$2.00 best
Output / 1MUS dollars per 1M output tokens.
$20.00
$10.00 best
Batch output / 1MBatch price per 1M output tokens.
$10.00
$5.00 best
1K chats2K tokens in, 500 out, each.
$18.00
$9.00 best
1K documents20K tokens in, 1K out, each.
$100.00
$50.00 best
1K agent tasks200K tokens in, 20K out, each.
$1,200.00
$600.00 best
ContextMaximum tokens in one request.
1M
1.05M best
AgenticMulti-step tasks with tools.
74.1
76.0 best
CodingCode writing and repair.
81.8 best
75.8
ReasoningLogic problems and puzzles.
80.8
81.8 best
MultimodalTasks with images and text.
74.1 best
72.2
KnowledgeFacts and expert knowledge.
79.2 best
78.0
MultilingualTasks in many languages.
—
73.2
InstructionTasks with strict prompt rules.
59.6
76.6 best
MathMath problems.
77.7
78.2 best
Benchmarks
87 sharedOnly Claude Opus 5.5: 70Only GPT-6.1 Sol: 11
Claude Opus 5.5
GPT-6.1 Sol