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Claude Sonnet 4.5 Anthropic Deprecated GPT-5.6 Terra OpenAI
Input $3.00 $2.00
Output $15.00 $12.00
Blended $6.00 $4.50
Context window 200k 1.05M
Max output 64k 128k
Output speed No data 124.9
Quality No data 62
Reasoning No data 67.7
Coding No data 65.4
Value No data 3.4
Vision ✓ ✓
Reasoning ✓ ✓
Tool calling ✓ ✓
Structured output ✓ ✓
Prompt caching ✓ ✓
Batch API ✓ ✓
Licence Proprietary Proprietary
API model id claude-sonnet-4-5-20250929 gpt-5.6-terra

At a glance

Input price, per million tokens
  1. Claude Sonnet 4.5Anthropic$3.00
  2. GPT-5.6 TerraOpenAI$2.00
Output price, per million tokens
  1. Claude Sonnet 4.5Anthropic$15.00
  2. GPT-5.6 TerraOpenAI$12.00
Context window
  1. Claude Sonnet 4.5Anthropic200k
  2. GPT-5.6 TerraOpenAI1.05M

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