OpenAI
GPT-5.5
Previous flagship of the GPT line, still top-20 on human preference arenas.
Intelligence
54.0 #349
AAQI 54.8
Output Speed
60 t/s
ITL 16.7 ms/tok
Blended price (3:1)
$4.375 /1M
In $2.5/M · Out $10/M
Context
1.1M
≈ 2,750 A4 pages · max out 16,384
Quality Domain Radar
6-Axis Frontier Evaluation vs Category Average & Flagship
GPT-5.5
Claude Mythos Preview (#1)
Average (68)
Radar axes are approximated from category scores where direct benchmark measurements are missing — see Methodology.
API deployment
Compare hosts & latency
Throughput, TTFT and cache pricing across Groq, Cerebras, Together, DeepInfra, Fireworks, Bedrock and Azure.
GroqCerebrasTogether AIDeepInfraFireworks AIAWS BedrockAzure AI
Groq
Cerebras
Together AI
DeepInfra
Fireworks AI
AWS Bedrock
Azure AIScores by Source
Category Scores
Benchmark Results
Model Details
Release date
Apr 22, 2026
Parameters
Not disclosed
License
Proprietary
Context Window
1,100,000 tokens
Input Price
$2.5/M
Output Price
$10/M
Output Speed
60 t/s
Time to First Token
—
Estimated monthly bill
Estimated monthly spend
$0.00
Calculating savings vs GPT-4o...
Cite & embed
GitHub Markdown badge
Loading badge markdown...BibTeX
@misc{llmpodium2026gpt55,
title = {Benchmark Analysis and Intelligence Evaluation of GPT-5.5},
author = {LLMPodium Research},
year = {2026},
url = {https://llmpodium.com/models/gpt-5-5}
}Embed Score Badge
Add a live Podium Score badge to your GitHub or Hugging Face README — it links back to the live ranking.
Preview
Markdown
Loading badge snippet...HTML
Loading badge snippet...More from OpenAI
Alternative Models
Closest alternatives to GPT-5.5 based on capabilities, pricing, and benchmark scores.