HomeModel ComparisonsGPT-5.5 Pro vs Claude Sonnet 4.6

GPT-5.5 ProvsClaude Sonnet 4.6

Which model is more cost-effective? Compare pricing, context window limits, and run live calculations below.

0 Tokens
Expected Output TokensEstimate generation cost

GPT-5.5 Pro

OpenAI • 512,000 Context
Input (per 1M)
$30
Output (per 1M)
$180
Est. Total Cost$0.0000

Claude Sonnet 4.6

Anthropic • 200,000 Context
Input (per 1M)
$3
Output (per 1M)
$15
Est. Total Cost$0.0000

In-Depth Comparison: GPT-5.5 Pro vs Claude Sonnet 4.6

When choosing between GPT-5.5 Pro (by OpenAI) and Claude Sonnet 4.6 (by Anthropic), developers must weigh API pricing and context window limits.

GPT-5.5 Pro offers a context window of 512,000 tokens at an input cost of $30 per 1M tokens. On the other hand, Claude Sonnet 4.6 provides a 200,000 token context window, priced at $3 per 1M input tokens. This helps developers find the best balance between performance and budget.

Frequently Asked Questions

Which is cheaper: GPT-5.5 Pro or Claude Sonnet 4.6?
GPT-5.5 Pro charges $30 per 1M input tokens, whereas Claude Sonnet 4.6 charges $3. For output, GPT-5.5 Pro is $180 vs $15 for Claude Sonnet 4.6.
What is the context window difference between GPT-5.5 Pro and Claude Sonnet 4.6?
GPT-5.5 Pro offers a context window of 512,000 tokens. In comparison, Claude Sonnet 4.6 supports up to 200,000 tokens.
Who provides GPT-5.5 Pro and Claude Sonnet 4.6?
GPT-5.5 Pro is provided by OpenAI, and Claude Sonnet 4.6 is developed by Anthropic.