In-Depth Comparison: GPT-5.5 vs Claude Haiku 4.5
When choosing between GPT-5.5 (by OpenAI) and Claude Haiku 4.5 (by Anthropic), developers must weigh API pricing and context window limits.
GPT-5.5 offers a context window of 256,000 tokens at an input cost of $5 per 1M tokens. On the other hand, Claude Haiku 4.5 provides a 200,000 token context window, priced at $1 per 1M input tokens. This helps developers find the best balance between performance and budget.
Frequently Asked Questions
- Which is cheaper: GPT-5.5 or Claude Haiku 4.5?
- GPT-5.5 charges $5 per 1M input tokens, whereas Claude Haiku 4.5 charges $1. For output, GPT-5.5 is $30 vs $5 for Claude Haiku 4.5.
- What is the context window difference between GPT-5.5 and Claude Haiku 4.5?
- GPT-5.5 offers a context window of 256,000 tokens. In comparison, Claude Haiku 4.5 supports up to 200,000 tokens.
- Who provides GPT-5.5 and Claude Haiku 4.5?
- GPT-5.5 is provided by OpenAI, and Claude Haiku 4.5 is developed by Anthropic.