Claude Sonnet 4.5
by Anthropictext+image+file->text8 endpoints
Neura Intelligence Index
79.1/ 100
Rank
#25—
Confidence
mediumBenchmarks
6(15% coverage)
Overview
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
Capabilities
Text generation
Image understanding
Tool use / Function calling
Structured output
Extended reasoning
Prompt caching
Modalities
Input
TextImageFile
Output
Text
Technical Specifications
Context Window
1M tokens
Max Output
64K tokens
Knowledge Cutoff
2025-01-31
Tokenizer
Claude
Content Moderation
Enabled
Uptime (24h)
9999.4%
Country
Supported Parameters
include_reasoningmax_completion_tokensmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_p
Benchmark Performance
general
| Benchmark | Score | Source |
|---|---|---|
| MMMLU | 89.1 | verified |
coding
| Benchmark | Score | Source |
|---|---|---|
| TerminalBench | 50 | verified |
math
| Benchmark | Score | Source |
|---|
Performance Over Time
Pricing
Per 1M tokens
Input$3.00
Output$15.00
Cache read$0.30
Cache write$3.75