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Anthropicclaude-sonnet-4.5

Anthropic: Claude Sonnet 4.5 API Pricing

Official PricingCall via OpenRouter

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-...

Base Input Price$3.00/ 1M tokens
Base Output Price$15.00/ 1M tokens
Prompt Cache Read$0.300-90% discount
Batch API Rate-50%24h async offload

Inference Hosts & Aggregator Providers

Compare rates and latency across direct APIs, OpenRouter, and hyperscale cloud providers

Live verified rates
Provider NameInput / 1MOutput / 1MPrompt CachingAccess Endpoint
Anthropic Direct$3.00$15.00SupportedConnect
OpenRouter$3.00$15.00SupportedConnect

Head-to-Head Comparisons for Anthropic: Claude Sonnet 4.5

Anthropic: Claude Sonnet 4.5 vs OpenAI: GPT-6.1 Sol$3/M vs $2/M
Anthropic: Claude Sonnet 4.5 vs GPT-4o (Omni)$3/M vs $2.5/M
Anthropic: Claude Sonnet 4.5 vs Claude 3.5 Sonnet$3/M vs $3/M
Anthropic: Claude Sonnet 4.5 vs DeepSeek-V3 (deepseek-chat)$3/M vs $0.27/M