AI Model Profile

GPT-5.5

GPT-5.5 is OpenAI's flagship API model for complex reasoning, coding, and professional work, with text and image input and text output described in official OpenAI model docs.

Family
GPT-5
Release date
Unknown
Status
Current
Context window
1M tokens
Output limit
128K tokens
API
yes
Open weights
no
Local/self-hosted
no
Pricing
Usage-based OpenAI API pricing; verify the official pricing page before budgeting.
Verification
verified

Verification & Sources

Status
Verified
Source links
3
Freshness
Verified June 18, 2026
Last verified
June 18, 2026
Last updated
June 17, 2026

Key source checks

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Benchmark Caveat

Provider documentation and provider-published capability notes are directional, not universal rankings. Real results depend on prompts, tools, latency targets, pricing tier, safety filters, context length, and workload mix.

Best for

Candidate for complex coding, reasoning, tool-assisted workflows, and professional analysis where OpenAI API access is acceptable.

Skip if

Skip if your team needs independently benchmarked performance claims or contractual guarantees not present in the official provider documentation.

Strengths

Official OpenAI docs position it for complex reasoning and coding and list tool support through the Responses API.

Weaknesses

Not open-weight or local in this profile; production suitability depends on API cost, latency, policy, and workload tests.

Agent suitability

Candidate for agent workflows because official docs list tool support including functions, web search, file search, and computer use.

Kingy AI take

Use this profile as a source-backed reference point, not a ranking. Re-check official provider docs before making production or budget decisions.

Full Model Notes

GPT-5.5 is OpenAI’s flagship API model for complex reasoning, coding, and professional work, with text and image input and text output described in official OpenAI model docs.

Coding notes

Official docs position GPT-5.5 for complex coding and professional work.

Reasoning notes

Official docs identify it as the flagship starting point for complex reasoning.

Creative notes

Supports text and image input according to OpenAI model docs, but this profile does not claim image generation capability for this model.

Research notes

Useful to evaluate for research workflows that need tool use and source retrieval, subject to independent testing.

API pricing notes

$5 input MTok and $30 output MTok in OpenAI model docs as checked on 2026-06-18.

License notes

Review the official provider terms and model documentation before relying on license or redistribution assumptions.