LLM Comparison

Claude Opus 4.6 vs Claude Sonnet 4.6

Side-by-side specs, pricing & capabilities · Updated May 2026

Price vs Intelligence

7365574942$6.30$9.60$12.90$16.20$19.50Avg Price per M tokensIntelligenceClaude Opus 4.662.5 / $15.00Claude Sonnet 4.651.7 / $9.00

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2/6 models
Same tier:
 AnthropicClaude Opus 4.6AnthropicClaude Sonnet 4.6
OrganizationAnthropicAnthropicAnthropicAnthropic
OpenTools Score
63
4.2
52
5.7
FamilyClaudeClaude
StatusCurrentCurrent
Release DateFeb 2026Feb 2026
Context Window1.0M tokens1.0M tokens
Input Price$5.00/M tokens$3.00/M tokens
Output Price$25.00/M tokens$15.00/M tokens
Pricing NotesCache read: $0.5000/M tokensCache read: $0.3000/M tokens
Capabilities
textvisioncodetool-use
textvisioncodetool-use
Max Output128K tokens128K tokens
API Identifieranthropic/claude-opus-4.6anthropic/claude-sonnet-4.6
Benchmarks
MMLU
89.8anthropic
86.7anthropic
GPQA Diamond
91.3anthropic
89.9anthropic
SWE-bench Verified
80.8anthropic
72.5anthropic
SWE-bench Pro
53.4anthropic
—
Terminal-Bench 2.0
65.4anthropic
51anthropic
MATH 500
80.7anthropic
54.2anthropic
LiveCodeBench
55.9anthropic
41.5anthropic
Berkeley Function Calling
91.9anthropic
88.3anthropic
HLE
48anthropic
30openrouter
MCP-Atlas
75.8anthropic
—
BrowseComp
83.7anthropic
—
OSWorld-Verified
72.7anthropic
—
DocVQA
91.3anthropic
—
GPQA-AA Elo
1619artificial-analysis
1674artificial-analysis
 View Claude Opus 4.6View Claude Sonnet 4.6

Cost Calculator

Enter your expected monthly token usage to compare costs.

ModelInputOutputTotal / movs Best
Claude Sonnet 4.6Cheapest$3.00$7.50$10.50—
Claude Opus 4.6$5.00$12.50$17.50+67%

Anthropic

Claude Opus 4.6

Claude Opus 4.6 is a multimodal LLM from Anthropic with adaptive reasoning capabilities. Achieves 91.3% on GPQA Diamond and 80.8% on SWE-bench Verified. Supports up to 1,000,000 token context window. Available from $5.00/M input tokens.

Anthropic

Claude Sonnet 4.6

Claude Sonnet 4.6 is a multimodal llm from Anthropic. Supports up to 1,000,000 token context window. Achieves 88.0% on MMLU. Available from $3.00/M input tokens.

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