OpenAIReleased on May 5, 2026

GPT-5.5 Instant: Benchmarks, Pricing & Context Window

GPT-5.5 Instant is a language model from OpenAI, released in May 2026, with multimodal input.

GPT-5.5 Instant is OpenAI's latest Instant model and the default ChatGPT model released on May 5, 2026. It improves factuality, everyday reasoning, image understanding, STEM answers, concision, conversational tone, and personalization over

Input
TextImage
Output
Text
Speed
TTFT851ms
Throughput213char/s
Cost
$7.78/ 1M · 8:1 in:out
$5.00 in · $30.0 out

GPT-5.5 Instant pricing

Providers

GPT-5.5 Instant starts at $5.00 per million input tokens and $30.00 per million output tokens via OpenAI.

ProviderInput $/MOutput $/MMax InputMax OutputLatency sThroughputQuantInputOutput
OpenAI logoOpenAI
$5.00$30.00400.0K128.0K
0.85
213 c/s
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GPT-5.5 Instant API

API access coming soon

GPT-5.5 Instant will be available through our gateway shortly.

GPT-5.5 Instant examples

Recent arena outputs from GPT-5.5 Instant, picked from the highest-ranked matchups.

GPT-5.5 Instant license

GPT-5.5 Instant is released under the Proprietary license, which restricts commercial use, has a knowledge cutoff of August 2025.

License
Proprietary
Non-commercial
Knowledge cutoff
August 2025

Proprietary license - usage restrictions apply

FAQ

Common questions about GPT-5.5 Instant.

When was GPT-5.5 Instant released?

GPT-5.5 Instant was released on May 5, 2026 by OpenAI. This is the official GPT-5.5 Instant release date tracked on LLM Stats.

Is GPT-5.5 Instant available via API?

Yes, GPT-5.5 Instant is available via API. See the official documentation for authentication and endpoint details. It is served by 1 provider tracked on LLM Stats.

Who created GPT-5.5 Instant?

GPT-5.5 Instant was created by OpenAI.

What is the license for GPT-5.5 Instant?

GPT-5.5 Instant is released under the Proprietary license.

What is the knowledge cutoff date for GPT-5.5 Instant?

GPT-5.5 Instant has a knowledge cutoff of August 2025, meaning it was trained on data up to that point and may not know about events after it.

Is GPT-5.5 Instant multimodal?

Yes, GPT-5.5 Instant is multimodal and can accept both text and images as input.

Where can I use GPT-5.5 Instant?

GPT-5.5 Instant is available through 1 provider including OpenAI.

Where is the GPT-5.5 Instant paper or technical report?

GPT-5.5 Instant has a paper or technical report available at https://openai.com/index/gpt-5-5-instant/. Use that source for architecture, training, release and evaluation details.