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Anthropic: Claude Sonnet 4.5

🇺🇸 Anthropic · Claude Sonnet

Input Price $3.00 per million tokens NT$96.0
Output Price $15.00 per million tokens NT$480
Context Window 1M tokens Output limit: 64K
OpenRouter Route Price Please verify with official pricing pages
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Overview

Anthropic: Claude Sonnet 4.5 is a large language model API from Anthropic, part of its Claude Sonnet model family. With $3.00 per million input tokens and $15.00 per million output tokens, it is a premium-tier model where output volume is the main cost to watch. Output tokens cost about 5× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. An exceptionally large 1M-token context window (≈1,500 pages of text) means entire repositories or document collections can be processed without chunking. Beyond plain text it also accepts Image, File input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 36 (B grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

Dimension Unit Price (USD) Price (TWD) Effective From
Input per 1M tokens $3.00 NT$96.0
Output per 1M tokens $15.00 NT$480
Cached Input per 1M tokens $0.300 NT$9.6
Cache Write per 1M tokens $3.75 NT$120
Web Search per search $0.010 NT$0.32

Provider
Anthropic
Model Family
Claude Sonnet
Version String
anthropic/claude-sonnet-4.5
Status
Active
Modality
Text, Image, File
Context Window
1,000,000 tokens
Output Limit
64,000 tokens

Index Metrics

Cross-domain capability indexes evaluated by Artificial Analysis — Artificial Analysis

Agentic Index 25 D Measured: 2026-07-01
Coding Index 52 A Measured: 2026-07-01
Intelligence Index 36 B Measured: 2026-07-01

Benchmark Scores

Data source: Artificial Analysis

AA-LCR 65.7% B Measured: 2026-07-01
GPQA Diamond 83.4% A Measured: 2026-07-01
HLE 17.3% B Measured: 2026-07-01
IFBench 57.3% C Measured: 2026-07-01
MMMU Pro 68.7% B Measured: 2026-07-01
Non-Hallucination 52.6% Measured: 2026-07-01
Omniscience Accuracy 32.4% Measured: 2026-07-01
SciCode 44.7% B Measured: 2026-07-01
Tau2 78.1% Measured: 2026-07-01
TerminalBench 35.6% Measured: 2026-07-01

Performance Metrics

Real-world benchmarks, updated every 72 hours by Artificial Analysis — Artificial Analysis

First Token Latency 11.2s Measured: 2026-07-01
Output Speed 45 t/s Measured: 2026-07-01
Response Time 22.3s Measured: 2026-07-01

90-Day Price Trend

Input / Output price (USD per 1M tokens)

Past 90 days of records; every price change is shown here

Date Dimension Price (USD) Source
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter
Web Search $0.010 OpenRouter
Cache Write $3.75 OpenRouter
Cached Input $0.300 OpenRouter
Output $15.00 OpenRouter
Input $3.00 OpenRouter

Key Insights

Key data points from this page for quick reference and citation.

  • Anthropic: Claude Sonnet 4.5 Input price: $3/M tokens
  • Anthropic: Claude Sonnet 4.5 Output price: $15/M tokens
  • Context window: 1,000,000 tokens
  • Provider: Anthropic
  • Model family: Claude Sonnet
  • Modalities: Text, Image, File
  • Data source: OpenRouter, updated daily