openai
POST /v1/chat/completionsGPT-5.5
gpt-5.5GPT-5.5 is described by OpenAI as a smarter frontier model for coding, research, data analysis, and professional knowledge work. The official launch messaging emphasizes higher capability, better speed than previous difficult-work models, and strong performance on tasks involving documents and structured analysis. Its description should focus on broad professional intelligence rather than a single niche.
Total Context
1.1Mtokens
Max Output
128Ktokens
Released
Apr 23, 2026
Modalities
GPT-5.5 Price
| Token Tier | Input Price | Output Price | Cache Read |
|---|---|---|---|
| <=272K | $5/M | $30/M | $0.5/M |
| >272K | $10/M | $45/M | $1/M |
GPT-5.5 API
GPT-5.5 Benchmark
54.8
/100
Artificial Analysis Intelligence Index
Artificial Analysis broad capability aggregate
Index score
59.1
/100
Artificial Analysis Coding Index
Artificial Analysis software task aggregate
Index score
Knowledge & Reasoning
GPQA
Advanced science problem solving
93.5%
HLE
Broad expert-level exam set
44.3%
Coding & Engineering
SciCode
Scientific coding challenges
56.1%
Terminal-Bench Hard
Hard terminal task execution
60.6%
Instruction Following & Agent Tasks
IFBench
Prompt constraint adherence
75.9%
AA-LCR
Long-context reasoning
74.3%
τ²-Bench
Agent workflow tasks
93.9%
Metrics sourced from Artificial Analysis
Model Comparison
GPT-5.5 FAQ
GPT-5.5: capabilities, use cases, limits, and TokenHub guidance.
How should teams view GPT-5.5?+
GPT-5.5 is a OpenAI model for frontier coding, reasoning, and professional workflows.
What is GPT-5.5 best for?+
Best for complex coding, tool-heavy automation and customer-facing workflows, especially when professional output quality is the priority.
What is GPT-5.5's main strength?+
Key strength: strong coding, professional reasoning, and reliable tool use.
Is GPT-5.5 always the best choice?+
It uses more compute, so latency and cost can be higher. For throughput, consider GPT-5.4 Mini.
What is the safest setup?+
Use the exact ID shown by TokenHub; follow your account docs and verify current features.
Media and Discussions
Selected public videos and posts related to this model.
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Reddit
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