HomeModel ComparisonsGPT-5.5 vs GPT-5.4

GPT-5.5vsGPT-5.4

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

OpenAI • 256,000 Context
Input (per 1M)
$5
Output (per 1M)
$30
Est. Total Cost$0.0000

GPT-5.4

OpenAI • 128,000 Context
Input (per 1M)
$2.5
Output (per 1M)
$15
Est. Total Cost$0.0000

In-Depth Comparison: GPT-5.5 vs GPT-5.4

When choosing between GPT-5.5 (by OpenAI) and GPT-5.4 (by OpenAI), 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, GPT-5.4 provides a 128,000 token context window, priced at $2.5 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 GPT-5.4?
GPT-5.5 charges $5 per 1M input tokens, whereas GPT-5.4 charges $2.5. For output, GPT-5.5 is $30 vs $15 for GPT-5.4.
What is the context window difference between GPT-5.5 and GPT-5.4?
GPT-5.5 offers a context window of 256,000 tokens. In comparison, GPT-5.4 supports up to 128,000 tokens.
Who provides GPT-5.5 and GPT-5.4?
GPT-5.5 is provided by OpenAI, and GPT-5.4 is developed by OpenAI.