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 Claude Fable Claude Haiku Claude Mythos Claude Opus Claude Sonnet DALL-E DeepSeek V4 Gemini GLM GPT Image GPT Realtime GPT-4.x GPT-5.x GPT-6 GPT-Live Grok Grok Voice Kimi MAI-Code Muse OpenAI o-series Sora Veo

Available Retired (7)All

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Showing 26 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-chat-latestRetired Jul 23, 2026
Model at OpenAI · GPT-5.x family
Retired: Older Codex, chat-latest, search and deep research models shut down · Jul 23, 2026
GPT-5-CodexRetired Jul 23, 2026
Model at OpenAI · GPT-5.x family
Retired: Older Codex, chat-latest, search and deep research models shut down · Jul 23, 2026
GPT-5.1 mini
Model at OpenAI · GPT-5.x family
GPT-5.1-CodexRetired Jul 23, 2026
Model at OpenAI · GPT-5.x family
Retired: Older Codex, chat-latest, search and deep research models shut down · Jul 23, 2026
gpt-5.2-chat-latestRetired Aug 10, 2026
Model at OpenAI · GPT-5.x family
Retired: gpt-5.2-chat-latest and gpt-5.3-chat-latest removed from the API · Aug 10, 2026
GPT-5.2-CodexRetired Jul 23, 2026
Model at OpenAI · GPT-5.x family
Retired: Older Codex, chat-latest, search and deep research models shut down · Jul 23, 2026
gpt-5.3-chat-latestRetired Aug 10, 2026
Model at OpenAI · GPT-5.x family
Retired: gpt-5.2-chat-latest and gpt-5.3-chat-latest removed from the API · Aug 10, 2026
GPT-5.4-CyberRetired Oct 1, 2026
Model at OpenAI · GPT-5.x family
Retired: GPT-5.4-Cyber removed from the API · Oct 1, 2026