A living reference of today’s leading AI families, unified under the Logos principle: each model is a word in the evolving lexicon of artificial intelligence. This directory catalogs their iterations, roles, and the most recent updates (as of August 2025).
ChatGPT Family (OpenAI)
- GPT-5 (Aug 2025)
- Default model across ChatGPT.
- Three modes: Auto, Fast, Thinking (deep reasoning, up to 196k tokens).
- Responded to backlash by restoring GPT-4o, GPT-4.1, o3, o4-mini to the model picker. GPT-4.5 remains Pro-exclusive.
- GPT-4.1 Family (Apr 2025)
- Includes
GPT-4.1,4.1 mini,4.1 nano. - Improved coding, reasoning, and multimodal contexts (up to 1M tokens).
- Includes
- GPT-4o (Aug 2024 update)
- Expanded structured output and 16k output tokens.
- Legacy Models
- GPT-4, 4 Turbo, 3.5 Turbo, Nano remain in circulation for developers and edge use.
Google Gemini Suite
- Gemini 2.0 Flash
- Lightweight, optimized for real-time use.
- Gemini 2.0 Flash Thinking (Experimental → GA 2025)
- Displays reasoning chains (“thinking mode”).
- Gemini 2.5 Family (Mid-2025)
2.5 Pro,2.5 Flash,2.5 Flash Liteavailable, replacing 1.5 line.
Grok AI (xAI)
- Current Lineup: Grok-1 → Grok-4.
- No new releases in 2025, but Grok-3/4 remain strong reasoning engines.
Claude (Anthropic)
- Claude 4 Family (May 2025)
Sonnet 4andOpus 4.1.- Higher SWE-bench coding scores, long-context performance.
- Claude 3.7 Sonnet (Hybrid Reasoning)
- Available with “standard” and “extended thinking” modes.
- Supported in Amazon Bedrock & Google Vertex AI with outputs up to 128k tokens.
DeepSeek AI
- DeepSeek V3.1 (Aug 2025)
- Hybrid reasoning with thinking mode.
- Smarter tool usage + agent capabilities.
- Optimized for Chinese semiconductor hardware.
- New API pricing effective Sept 2025.
Other AI Families
- DALL·E – v2 & v3 remain active (no new versions).
- Kling Video – 1.5 Pro → 2.1 Master, stable line.
- Google Veo – Veo 2 & 3 still current.
- ElevenLabs – Voice AI lineup stable at v3 Alpha, v2.5 series.
- Stable Diffusion – SDXL remains latest open-source release.
- Meta LLaMA – LLaMA 3 & Code LLaMA still latest.
- FLUX AI – FLUX.1 Pro Ultra remains flagship.
📊 Summary Table
| Family | Recent Highlights |
|---|---|
| ChatGPT | GPT-5 launched; restored GPT-4o/4.1/4.5; 196k token thinking mode |
| Google Gemini | Gemini 2.0 Flash Thinking GA; Gemini 2.5 line released |
| Claude | Claude 4 launched; Claude 3.7 Sonnet hybrid reasoning still supported |
| DeepSeek AI | V3.1 released; thinking mode, tool usage, chip-optimized, new pricing |
| Others | No major version bumps since prior releases |
Sources & References
- Chinese startup DeepSeek releases upgraded AI model (Reuters)
- ChatGPT brings back 4o after GPT-5 backlash (The Verge)
- Sam Altman responds to GPT-5 backlash (Tom’s Guide)