GPT-5.5
OpenAI
Input / 1M$5.00Output / 1M$30.00Arena1471Value1001,000 coding edits$34.00
Face-off
GPT-5.5 vs GPT-5.4
GPT-5.5 versus GPT-5.4 on list price and published Arena rating. GPT-5.5 Arena 1471 · GPT-5.4 Arena 1469 Blended list price GPT-5.5 $23.75 and GPT-5.4 $11.88 per 1M tokens.
GPT-5.5OpenAIArena 1471$23.75 / 1MGPT-5.5 leads by 2 Arena pointsGPT-5.5 costs 2.0x more
GPT-5.4OpenAIArena 1469$11.88 / 1MGPT-5.4
OpenAI
Input / 1M$2.50Output / 1M$15.00Arena1469Value1091,000 coding edits$17.00
GPT-5.5 leads by 2 Arena points. GPT-5.5 costs 2.0x more, moving from GPT-5.5 to GPT-5.4. The 1,000-edit cost uses a planning assumption of 2,000 input and 800 output tokens, not a measured trace. Share this face-off. The link renders an Open Graph image of the two models.