Claude Opus 4.1 vs Claude Sonnet 4.5
Change modelsClaude Opus 4.1Anthropic
Claude Sonnet 4.5Anthropic
IndexAll categories, out of 100.
47.5 ±5.0
47.9 ±5.5 best
GapIndex points below the top.
−0.4 · no clear gap
Top
CoverageIndex weight that has results.
90% best
80%
SpeedOutput tokens per second.
12/s
45/s best
EloLMArena rating and rank.
1419
1439 best
ReleasedMonth of release.
2025-08
2025-09
Input / 1MUS dollars per 1M input tokens.
$15.00
$3.00 best
Output / 1MUS dollars per 1M output tokens.
$75.00
$15.00 best
Batch output / 1MBatch price per 1M output tokens.
$37.50
$7.50 best
1K chats2K tokens in, 500 out, each.
$67.50
$13.50 best
1K documents20K tokens in, 1K out, each.
$375.00
$75.00 best
1K agent tasks200K tokens in, 20K out, each.
$4,500.00
$900.00 best
ContextMaximum tokens in one request.
200K
1M best
AgenticMulti-step tasks with tools.
48.7
49.3 best
CodingCode writing and repair.
48.2
53.9 best
ReasoningLogic problems and puzzles.
55.5 best
45.3
MultimodalTasks with images and text.
51.1
—
KnowledgeFacts and expert knowledge.
49.4
49.4
MultilingualTasks in many languages.
—
—
InstructionTasks with strict prompt rules.
—
—
MathMath problems.
42.0
46.6 best
Benchmarks
14 sharedOnly Claude Opus 4.1: 12Only Claude Sonnet 4.5: 21
Claude Opus 4.1
Claude Sonnet 4.5