OpenAI

Maker of GPT and ChatGPT

https://openai.com

News

analysisOpenAI

Chinese AI Models Capture 30%+ of U.S. Developer Token Usage as OpenAI, Anthropic Costs Rise

Chinese AI models including DeepSeek and Z.ai have captured over 30% of weekly token usage by U.S. companies on OpenRouter since February 2025, up from 4.5% in the first half of the year. The shift comes as companies seek alternatives 60-90% cheaper than leading models from OpenAI and Anthropic, while Chinese models close the performance gap to within 6-9 months of U.S. frontier systems.

3 min read
model releaseOpenAI

OpenAI restricts GPT-5.6 rollout to government-approved partners, calls arrangement unsustainable

OpenAI released its GPT-5.6 model lineup to a limited group of "trusted partners" after the U.S. government requested restrictions on the rollout. The company released three models—Sol ($5/$30 per million tokens), Terra ($2.50/$15), and Luna ($1/$6)—but said the government-mandated preview "shouldn't become the long-term default."

3 min read
model releaseOpenAI

OpenAI announces GPT-5.6 series with Sol flagship, Terra at 50% cost of GPT-5.5, and Luna budget model

OpenAI has begun a limited preview of its GPT-5.6 series, introducing three models: Sol (flagship), Terra (2x cheaper than GPT-5.5 with competitive performance), and Luna (lowest cost option). The models are launching first with trusted partners before general availability in coming weeks, following U.S. government preview requirements.

2 min read
product updateOpenAI

OpenAI's ChatGPT Memory V3 now profiles users across all conversations, raises accuracy and privacy concerns

OpenAI has deployed Dreaming V3, a background memory synthesis system that builds comprehensive user profiles from chat history. The company reports factual task recall jumped from 41% in 2024 to 82% in 2026, while reducing compute costs by 5X. However, testing reveals the system stores outdated and incorrect information that persists even when users disable memory features.

3 min read
product updateOpenAI

OpenAI plans ChatGPT redesign to integrate coding tools, image generation, and third-party apps

OpenAI will roll out a redesigned ChatGPT interface in the coming weeks that integrates coding tools, image generation capabilities, and third-party applications from partners including Canva and Booking.com. The overhaul, first reported by The Financial Times, aims to shift users from simple chat interactions to multi-task workflows, particularly targeting enterprise customers.

2 min read

Models

GPT-2 774M

OpenAI

discontinued
Context1K

GPT-3

OpenAI

discontinued
Context4K

OpenAI Codex (2024)

OpenAI

discontinued

OpenAI Codex (codex-1)

OpenAI

discontinued

Point-E

OpenAI

discontinued

GPT-4

OpenAI

discontinued

Voice Engine

OpenAI

discontinued

GPT-3.5 Turbo

OpenAI

discontinued
Context4K
Input/1M$2

GPT-5.6 Sol

OpenAI

active
Input/1M$5

Jun 27, 2026

GPT-5.5 Instant

OpenAI

active

Jun 24, 2026

GPT-5.5-Cyber

OpenAI

active

Jun 22, 2026

GPT-Realtime-2

OpenAI

active
Input/1M$32

May 7, 2026

GPT-5.5-Cyber

OpenAI

active

May 7, 2026

GPT-5.5

OpenAI

active
Context1000K
Input/1M$5

Apr 29, 2026

OpenAI GPT Mini Latest

OpenAI

active
Context400K

Apr 27, 2026

GPT-5.5 Pro

OpenAI

active
Context1050K
Input/1M$30

Apr 24, 2026

OpenAI Privacy Filter

OpenAI

active
Context128K

Apr 22, 2026

ChatGPT Images 2

OpenAI

active

Apr 21, 2026

ChatGPT Images 2.0

OpenAI

active

Apr 21, 2026

ChatGPT Images 2.0

OpenAI

active

Apr 21, 2026

GPT-5.4 Image 2

OpenAI

active
Context272K
Input/1M$8

Apr 21, 2026

GPT-5.4-Cyber

OpenAI

active

Apr 15, 2026

GPT-5.4 Nano

OpenAI

active

The most lightweight and cost-efficient variant of the GPT-5.4 family. Optimized for speed-critical and high-volume tasks. Supports text and image inputs for classification, data extraction, and agent execution.

Context400K
Input/1M$0.2

Mar 17, 2026

GPT-5.4 mini

OpenAI

active
Context400K
Input/1M$0.75

Mar 17, 2026

GPT-5.4

OpenAI

active
Context1049K
Input/1M$2.5

Mar 5, 2026

DALL·E

OpenAI

discontinued

Feb 19, 2026

DALL·E 3

OpenAI

discontinued

Feb 19, 2026

o4-mini

OpenAI

active

Fast, affordable reasoning model. Strong on STEM tasks.

Context200K
Input/1M$1.1

Apr 16, 2025

o3

OpenAI

active

OpenAI's most capable reasoning model. Leads on math, code, and science.

Context200K
Input/1M$10

Apr 16, 2025

GPT-4.1 mini

OpenAI

active

Efficient GPT-4.1 with 1M context. Best value for agentic and long-context tasks.

Context1000K
Input/1M$0.4

Apr 14, 2025

GPT-4.1

OpenAI

active

GPT-4.1 with 1M token context. Built for long-document and agentic workflows.

Context1000K
Input/1M$2

Apr 14, 2025

GPT-4.1 nano

OpenAI

active

Smallest and cheapest GPT-4.1. Optimized for classification and low-latency tasks.

Context1000K
Input/1M$0.1

Apr 14, 2025

GPT-Rosalind

OpenAI

active

Apr 10, 2025

GPT-4.5

OpenAI

active

OpenAI's largest GPT model. Strongest emotional intelligence and world knowledge of any GPT, optimized for agentic workflows.

Context128K
Input/1M$75

Feb 27, 2025

o3-mini

OpenAI

deprecated

Fast reasoning model at o3-level performance. Configurable thinking effort (low/medium/high).

Context200K
Input/1M$1.1

Jan 31, 2025

o1-pro

OpenAI

active

o1 with extended compute for the hardest problems. Significantly outperforms o1 on math, science, and complex coding tasks.

Context200K
Input/1M$150

Dec 17, 2024

o1

OpenAI

deprecated

OpenAI's flagship reasoning model with extended chain-of-thought. Strong on math and science.

Context200K
Input/1M$15

Dec 5, 2024

o1-mini

OpenAI

deprecated

Compact reasoning model. Superseded by o3-mini and o4-mini.

Context128K
Input/1M$3

Sep 12, 2024

GPT-4o August 6, 2024

OpenAI

active
Context128K
Input/1M$2.5

Aug 6, 2024

GPT-4o mini

OpenAI

active

Small, affordable GPT-4o for lightweight tasks.

Context128K
Input/1M$0.15

Jul 18, 2024

GPT-4o mini

OpenAI

active
Context128K
Input/1M$0.15

Jul 18, 2024

GPT-4o

OpenAI

active
Context128K
Input/1M$2.5

May 13, 2024

GPT-4 Turbo

OpenAI

deprecated

Original GPT-4 Turbo with 128K context. Superseded by GPT-4o.

Context128K
Input/1M$10

Apr 9, 2024

Top Benchmark Scores

Full leaderboard →

AIME 2024

GPT-5.4
94%

AIME 2025

o3
96.7%

DocVQA

GPT-5.4
97%
93.5%

HumanEval

o4-mini
99.4%

LiveCodeBench

GPT-5.4
83.5%
99.5%
93.8%

MMLU-Pro

GPT-5.4
89.8%
85.5%

Speed (tok/s)

GPT-5.4 Nano
210 tokens_per_sec

SWE-bench Verified

GPT-5.4
83.1%