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AnswerChecked Oct 23, 10:45 PM ET

What is the latest OpenAI model?

The newest OpenAI model is GPT-6.1 Sol Pro, first listed on OpenRouter on Sep 29, 2026.

Top ranked on LMArena Text: GPT-5.5 (High) at #30.

Latest from OpenAI: Rapidly scaling online storage to serve over 1 billion ChatGPT users (Part II) (Oct 23, 2026).

Sources: OpenRouter, LMArena (CC BY 4.0), openai.com

Newest model
GPT-6.1 Sol Pro
Listed Sep 29, 2026, 1.1M context
Best on LMArena Text
#30 GPT-5.5 (High)
Score 1472, board of Oct 22, 2026

Recent OpenAI models

ModelListedContext$ in / out
GPT-6.1 Sol Pro
openai/gpt-6.1-sol-pro
Sep 291.1M$2.00 / $10
GPT-6.1 Sol
openai/gpt-6.1-sol
Sep 291.1M$2.00 / $10
GPT-6 Luna Pro
openai/gpt-6-luna-pro
Sep 221.1M$0.100 / $0.50
GPT-6 Luna
openai/gpt-6-luna
Sep 221.1M$0.100 / $0.50
GPT-6 Sol Pro
openai/gpt-6-sol-pro
Sep 221.1M$2.00 / $10
GPT-6 Sol
openai/gpt-6-sol
Sep 221.1M$2.00 / $10
GPT-6 Astra
openai/gpt-6-astra
Sep 41.1M$10 / $50
GPT-6 Astra Pro
openai/gpt-6-astra-pro
Sep 41.1M$10 / $50

Price per 1M tokens on OpenRouter.

Latest from OpenAI

Leaderboard standing

ArenaBest modelRank
TextGPT-5.5 (High)#30
WebDevGPT-6 Astra (Max)#2
VisionGPT-5.4 (High)#18
Text to Imagegpt-image-2.5-sunburst#1

All leaderboards. Source: LMArena, CC BY 4.0.

OpenAI in funding news

Questions

What is the latest OpenAI model?

As of Oct 23, 2026, the newest OpenAI model is GPT-6.1 Sol Pro, first listed on OpenRouter on Sep 29, 2026.

Which OpenAI model ranks highest on LMArena?

The highest ranked OpenAI model on the LMArena Text leaderboard is GPT-5.5 (High), at #30 with a score of 1472 (board published Oct 22, 2026).

What did OpenAI announce most recently?

OpenAI's most recent announcement is "Rapidly scaling online storage to serve over 1 billion ChatGPT users (Part II)" from Oct 23, 2026.

How often is this answer updated?

Every two hours. The model listing comes from the OpenRouter models API, rankings from the LMArena leaderboard dataset, and announcements from openai.com.