Anthropic: Claude Sonnet 4.5 (20250929)
Helicone
Anthropic: Claude Sonnet 4.5 (20250929) by Helicone costs $3.00 per 1M input tokens and $15.00 per 1M output tokens, with a 200K-token context window.
Pricing
Input (per 1M tokens)
$3.00
Output (per 1M tokens)
$15.00
Cached input (per 1M)
$0.30
Specifications
- Provider
- Helicone
- Context window
- 200K tokens
- Parameters
- —
- Released
- Sep 2025
- Open weights
- No
- Frontier model
- No
Compare Anthropic: Claude Sonnet 4.5 (20250929) with…
Anthropic: Claude Sonnet 4.5 (20250929) vs OpenAI GPT-5 Nano$0.40/1MAnthropic: Claude Sonnet 4.5 (20250929) vs Mistral-Large$6.00/1MAnthropic: Claude Sonnet 4.5 (20250929) vs OpenAI GPT-5 Mini$2.00/1MAnthropic: Claude Sonnet 4.5 (20250929) vs Anthropic: Claude Opus 4.5$25.00/1MAnthropic: Claude Sonnet 4.5 (20250929) vs OpenAI GPT-4o$10.00/1MAnthropic: Claude Sonnet 4.5 (20250929) vs Anthropic: Claude Opus 4.1$75.00/1M
FAQ
Pricing is per 1M tokens (USD); confirm with the provider before production use.