Claude Sonnet 5 API
claude-sonnet-5AnthropicCommercial use API verifiedText & reasoning
Claude Sonnet 5 — frontier reasoning and generation through one API.
by Anthropic
Pricing: Input 80 credits / 1M tokens (≈ $0.8), Output 498.41 credits / 1M tokens (≈ $4.9841). Cached Input 8 credits / 1M tokens (≈ $0.08), Cache Writes 100 credits / 1M tokens (≈ $1) — applied automatically when the upstream reports cached tokens for your prompt; there is no field to request them.
Save up to 76%with the $1,250 top-up pack (+10% bonus) — 73% lower than direct rates even without itTop up24H Status Monitor
Operational24h agonow
MODEL
claude-sonnet-5
Tools
Web Search
Web search feeds the results back as input tokens, so a searched turn typically costs many times a normal turn (measured: 6–87×). Billed per token as usual — nothing extra per search.
Thinking process
Reasoning effort
Max tokens
Stream Response
Start a conversation with Claude Sonnet 5
Input 80 · Output 498.41 cr / 1M · billed per token
You only pay for successful generations — if a task fails or returns no result, its credits are refunded automatically, never charged. And your credits never expire: top up once and spend at your own pace.1 credit = $0.01 USDTop up $1,250 for +10% bonus credits → up to ~9% more off every call.Top up credits
Claude Sonnet 5 API pricing4 prices
Model & ModalityCredits / GenOur Price (USD)Direct / Standard Price (USD)Base savingsSavings with top-up$1,250 top-up · +10% credits
claude-sonnet-5, chat, Input
textAnthropic
Credits / Gen80per million tokens
Our Price (USD)$0.8
Direct / Standard Price (USD)$3
Base savings−73.3%
Savings with top-up · $1,250 · +10%−76% ↓
claude-sonnet-5, chat, Output
textAnthropic
Credits / Gen498.41per million tokens
Our Price (USD)$4.9841
Direct / Standard Price (USD)$15
Base savings−66.8%
Savings with top-up · $1,250 · +10%−70% ↓
Claude Sonnet 5, Cache Writes
textAnthropic
Credits / Gen100per million tokens
Our Price (USD)$1
Direct / Standard Price (USD)$3.75
Base savings−73.3%
Savings with top-up · $1,250 · +10%−76% ↓
Claude Sonnet 5, Cached Input
textAnthropic
Credits / Gen8per million tokens
Our Price (USD)$0.08
Direct / Standard Price (USD)$0.3
Base savings−73.3%
Savings with top-up · $1,250 · +10%−76% ↓
Explore more LLM models
Moonshot AI
Kimi K3
Frontier coding, native vision, and 1M-token agents from Moonshot AI.
Claude Fable 5.1
Anthropic's Claude Fable 5.1 — for demanding reasoning and long-horizon agentic work, with stronger long-running agentic coding, multistep research, and document, spreadsheet and slide work across a 1M-token context.
Claude Opus 5.5
Anthropic's Claude Opus 5.5 — frontier reasoning for complex coding, research and agentic work, served through one API.
Claude Sonnet 5.5
Anthropic's Claude Sonnet 5.5 — the balanced Claude for everyday coding, writing and analysis, served through one API.
Claude Haiku 5.5
Anthropic's Claude Haiku 5.5 — the fastest, lowest-cost Claude for high-volume chat, coding and everyday tasks, served through one API.
Gemini 3.6 Flash
Google's newest speed-optimized multimodal model — fast text, vision, and reasoning.