CHATGPT

BY OPENAI // GPT-5 // o4-MINI // APPLE

// RELEASE HISTORY

MAJORFEATUREPATCH

2025-08

MAJOR

LATEST

GPT-5

Released August 7, 2025. OpenAI ships GPT-5 — a unified model collapsing the o-series and GPT families into a single multimodal, reasoning-capable architecture.

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// FULL RELEASE NOTES

›Unifies the GPT and o-series reasoning families into one model ID

›Adaptive reasoning: model self-selects compute spend per query based on difficulty

›Sam Altman described it as "the biggest capability leap we've shipped in years"

›Native multimodal: text, vision, audio, and code in a single call — no mode switching

›Rollout order: ChatGPT Pro → Plus → free tier over several weeks

›API access launches simultaneously — same model ID across all consumer and API tiers

›Replaces GPT-4o as the default free-tier model once rollout stabilises

›o3 and o4-mini remain available for users who want explicit reasoning-mode control

2025-04

MAJOR

o3 + o4-mini GA

OpenAI's most capable reasoning models reach general availability. o3 tops ARC-AGI at 87.5%. o4-mini delivers o3-class reasoning at significantly lower cost.

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2025-03

MAJOR

GPT-4.5 + Operator

GPT-4.5 ships as the largest GPT model to date. Operator launches simultaneously — OpenAI's agentic browser product that handles web tasks autonomously.

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2024-12

MAJOR

Apple Intelligence — ChatGPT on 1B Devices

Apple ships ChatGPT inside iOS 18.2 and Siri in December 2024. OpenAI gains distribution to over 1 billion Apple devices with zero install required.

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2024-09

MAJOR

o1 + o1-mini

OpenAI introduces test-time compute scaling — models that think longer on harder problems. o1 sets records on math olympiad and PhD-level science benchmarks.

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2024-05

MAJOR

GPT-4o

Native multimodal model — text, audio, and vision in one unified architecture. Real-time voice with natural latency. Free tier expanded to all ChatGPT users.

// STAY CURRENT

Full release notes and technical docs on the official site.

chatgpt.com ↗

⚠ AI-CURATED — data may be inaccurate or outdated. Verify at official sources.

// ALWAYSBERUSHING · AI INTELLIGENCE FEED