Claude Sonnet 4.6
by Anthropictext+image+file->text9 endpoints
Neura Intelligence Index
75.7/ 100
Rank
#55—
Confidence
highBenchmarks
9(23% coverage)
Overview
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with...
Capabilities
Text generation
Image understanding
Tool use / Function calling
Structured output
Extended reasoning
Prompt caching
Long context
File input
Top-P sampling
Stop sequences
Modalities
Input
TextImageFile
Output
Text
Technical Specifications
Context Window
1M tokens
Max Output
128K tokens
Tokenizer
Claude
Content Moderation
Enabled
Uptime (24h)
10000.0%
Country
🇺🇸US
Release Date
February 17, 20267mo
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_pverbosity
Benchmark Performance
general
| Benchmark | Score | Source |
|---|---|---|
| MMMLU | 89.3 | verified |
coding
| Benchmark | Score | Source |
|---|---|---|
| SWE-bench Verified | 79.6 | verified |
reasoning
| Benchmark | Score | Source |
|---|---|---|
| GPQA Diamond | 89.9 | verified |
| ARC-AGI v2 | 58.3 | verified |
| Humanity's Last Exam | 49 | verified |
multimodal
| Benchmark | Score | Source |
|---|---|---|
| MMMU-Pro | 75.6 | verified |
agent
| Benchmark | Score | Source |
|---|---|---|
| BrowseComp | 74.7 | verified |
| OSWorld | 72.5 | verified |
| MCP Atlas | 61.3 | verified |
Performance Over Time
Pricing
Per 1M tokens
Input$3.00
Output$15.00
Cache read$0.30
Cache write$3.75
Added
February 17, 2026
Last synced 9/21/2026