LLM
GA
Proprietary
GPT-5.5
General-purpose agentic automation (mid-2026 standard)
Release2026-04-23
Context1M
Max output128,000 tokens
ParametersUndisclosed
Local / VRAMAPI only
LicenseProprietary
Overview
GPT-5.5 is a model in the LLM category from OpenAI. It was released in 2026-04-23. The vendor is based in US. Best for: General-purpose agentic automation (mid-2026 standard).
Strengths
- Broad tool ecosystem
- Reliable multi-step workflows
- 1M context
Limits
- High output cost
- Not the leader on any single benchmark
Specifications
| Vendor | OpenAI |
|---|---|
| Category | LLM |
| Release | 2026-04-23 |
| Status | GA |
| License | Proprietary |
| Commercial use | Not specified |
| Context window | 1M |
| Max output tokens | 128,000 |
| Input modalities | Text, Image |
| Output modalities | Text |
| Prompt types | Text |
| Negative prompts | No |
| Max outputs | 1 |
| Local deployment | No |
| API access | Yes |
| Pricing | $5 / $30 per 1M token |
| Confidence | High |
| Vendor country | US |
| Vendor type | Frontier lab |
Pricing & hardware
$5 / $30 per 1M token
API-only: local GPU memory is not applicable. API access is available.