Models

Every model with a recorded change, from releases to retirements. 164 models from 10 companies.

All companies Anthropic DeepSeek Google Meta Microsoft Mistral AI Moonshot AI OpenAI SpaceXSI Z.ai

All families DALL-E GPT Image GPT Realtime GPT-4.x GPT-5.x GPT-6 GPT-Live OpenAI o-series Sora

Available Retired (7)All

Sort:Most popular Newest A to Z

Showing 19 models. Most popular is estimated US search interest over recent months, as of Oct 24, 2026. Searches for a family name count toward its current versions, and an older version ranks below the one that replaced it.

GPT-5.6 Terra
Model at OpenAI · GPT-5.x family
Price change: GPT-5.6 Luna 80% cheaper, Terra 20% cheaper · Jul 30, 2026
GPT-5.6 Sol
Model at OpenAI · GPT-5.x family
Price change: GPT-5.6 Sol price cut to $4 input and $20 output · Aug 21, 2026
GPT-5.3-Codex-Spark
Model at OpenAI · GPT-5.x family
Retired: GPT-5.3-Codex-Spark research preview retired · Sep 14, 2026
GPT-5.6 Luna
Model at OpenAI · GPT-5.x family
Default change: ChatGPT replaces GPT-5.5 Instant with GPT-5.6 Sol and Luna · Aug 6, 2026
GPT-5.4 mini
Model at OpenAI · GPT-5.x family
Perplexity AI: Perplexity retires older OpenAI model IDs from the Agent API and Orchestrator API · 1w
gpt-5-6-cyber
Model at OpenAI · GPT-5.x family
Now available: Daybreak cybersecurity models available on Amazon Bedrock · Aug 11, 2026
GPT-5.3-CodexRetiring Apr 1, 2027
Model at OpenAI · GPT-5.x family
Retiring: GPT-5.3-Codex, GPT-5.1 and GPT-5.4 nano to shut down April 1, 2027 · Oct 1, 2026
GPT-5.5 Pro
Model at OpenAI · GPT-5.x family
New release: GPT-5.5 and GPT-5.5 Pro released in the API · Apr 24, 2026
GPT-5.4 nanoRetiring Apr 1, 2027
Model at OpenAI · GPT-5.x family
Perplexity AI: Perplexity retires older OpenAI model IDs from the Agent API and Orchestrator API · 1w
GPT-5 nano
Model at OpenAI · GPT-5.x family
Retiring: GPT-5 and o3 snapshots to shut down December 11 · Jun 11, 2026
GPT-5.5
Model at OpenAI · GPT-5.x family
Retired: GPT-5.5 retired from Codex and ChatGPT · 2w
GPT-5.1-Codex-Max
Model at OpenAI · GPT-5.x family
Retiring: Codex drops GPT-5.2-Codex, GPT-5.1-Codex models and GPT-5 for ChatGPT sign-in · Apr 7, 2026
GPT-5.4
Model at OpenAI · GPT-5.x family
Perplexity AI: Perplexity retires older OpenAI model IDs from the Agent API and Orchestrator API · 1w
GPT-5.2
Model at OpenAI · GPT-5.x family
Perplexity AI: Perplexity retires older OpenAI model IDs from the Agent API and Orchestrator API · 1w
GPT-5.1Retiring Apr 1, 2027
Model at OpenAI · GPT-5.x family
Perplexity AI: Perplexity retires older OpenAI model IDs from the Agent API and Orchestrator API · 1w
GPT-5
Model at OpenAI · GPT-5.x family
Perplexity AI: Perplexity retires older OpenAI model IDs from the Agent API and Orchestrator API · 1w
GPT-5 Pro
Model at OpenAI · GPT-5.x family
Retiring: GPT-5 and o3 snapshots to shut down December 11 · Jun 11, 2026
GPT-5 mini
Model at OpenAI · GPT-5.x family
Perplexity AI: Perplexity retires older OpenAI model IDs from the Agent API and Orchestrator API · 1w
GPT-5.1 mini
Model at OpenAI · GPT-5.x family