Monday, October 5, 2026 · No. 435Prices synced 7 hours ago
All·AI·Model

The AI Model Price Index

Claude Sonnet 5.5

by Kilo Gateway · family claude-sonnet · listed Sep 2026RTV

Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...

Current rates USD per 1M tokens

Input$2.00
Output$10.00
Cache read$0.20
Cache write$2.50

Against the market

Input price vs. maker flagships ($/1M tokens)
DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: $0.15 per 1M tokens$0.15Qwen3.8 Omni FlashQwen3.8 Omni Flash: $0.15 per 1M tokens$0.15Gemini 3.8 FlashGemini 3.8 Flash: $0.75 per 1M tokens$0.75GLM-5.3GLM-5.3: $1.40 per 1M tokens$1.40Claude Sonnet 5.5Claude Sonnet 5.5: $2.00 per 1M tokens$2.00Claude Sonnet 5.5Claude Sonnet 5.5: $2.00 per 1M tokens$2.00GPT-6.1 SolGPT-6.1 Sol: $2.00 per 1M tokens$2.00Grok 4.7Grok 4.7: $2.00 per 1M tokens$2.00
Output price vs. maker flagships ($/1M tokens)
Qwen3.8 Omni FlashQwen3.8 Omni Flash: $0.47 per 1M tokens$0.47DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: $0.60 per 1M tokens$0.60Gemini 3.8 FlashGemini 3.8 Flash: $3.75 per 1M tokens$3.75GLM-5.3GLM-5.3: $4.40 per 1M tokens$4.40Grok 4.7Grok 4.7: $6.00 per 1M tokens$6.00Claude Sonnet 5.5Claude Sonnet 5.5: $10.00 per 1M tokens$10.00Claude Sonnet 5.5Claude Sonnet 5.5: $10.00 per 1M tokens$10.00GPT-6.1 SolGPT-6.1 Sol: $10.00 per 1M tokens$10.00

On the record

Model id
anthropic/claude-sonnet-5.5
Context window
1M tokens
Max output
128K tokens
Input modalities
text, image, pdf
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
no
Knowledge cutoff
Jun 2026
Released
2026-09-28
Last updated
2026-09-28
Provider docs
kilo.ai

Back of the envelope

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