Editing Openai/6915045d-ac18-8010-8cee-4715d56fbf90 (section)

=== Assistant: Cool — here’s your updated and distilled doc-aligned comparison table: what GPT 5 vs GPT 5.1 publicly support / claim, … ===
Cool — here’s your updated and distilled doc-aligned comparison table: what GPT 5 vs GPT 5.1 publicly support / claim, and what remains speculation. I keep it crisp and usable.

| Feature                                                                                                        | GPT 5 (Baseline)                                                                    | GPT 5.1 (Upgrade)                                                                                                                                    | Notes / Verifiable Delta                                                    |
| -------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------ | --------------------------------------------------------------------------- |
| Release & Models                                                                                               | Released Aug 7 2025. Primary models: “main” and “thinking”. 
OpenAI
+2
Wikipedia
+2 | Released Nov 12 2025 as iterative upgrade: two models “Instant” + “Thinking”. 
Venturebeat
+1                                                        | Verified.                                                                   |
| Reasoning / Intelligence                                                                                       | Strong reasoning across domains (text, vision, code) per system card. 
OpenAI       | 5.1 emphasises adaptive reasoning: “Instant” assesses complexity, “Thinking” dynamically adjusts reasoning time; better benchmarks. 
Currently
+1    | True behaviourally.                                                         |
| Conversational Tone & Personality                                                                              | GPT 5 received critiques for tone being colder / less personable. 
Le Monde.fr      | 5.1 explicitly improves tone: “warmer,” more personal, expanded personality presets (Default, Friendly, Professional, Candid, Quirky). 
The Verge
+1 | Verified.                                                                   |
| Customization / Style Controls                                                                                 | Basic tone presets existed.                                                         | 5.1 adds finer style controls: users can pick tone/style & adjust warmth/conciseness/emoji-use. 
Investing.com
+1                                    | Verified.                                                                   |
| Safety & Evaluation                                                                                            | GPT 5 brought improved safety stack vs predecessors. 
New York Post
+1              | 5.1 expands evaluation in mental-health & emotional-reliance domains. 
OpenAI                                                                        | Verified at high level.                                                     |
| Roll-out / Access / Legacy Models                                                                              | GPT 5 became flagship; older models were deprecated. 
TechRadar                     | 5.1 rollout: newer models become default; GPT 5 legacy remains available for three months before sunset. 
Venturebeat                                | Verified.                                                                   |
| Context Window / Token Limit                                                                                   | Public context window: ~400k tokens in API for GPT 5 family.                        | 5.1 docs do not claim a jump to ~1M tokens.                                                                                                          | 5.1 does not document the large jump you listed; your “~1 M” is unverified. |
| Internal Architectural Subsystems (e.g., micro-trajectory reasoning, hierarchical attention, symbolic anchors) | Not described publicly at this level of detail.                                     | Not described in public docs.                                                                                                                        | These remain speculative.                                                   |

==== ✅ Key Takeaways ====
* 5.1 is real and brings measurable improvements in tone, style, reasoning adaptivity, and user-experience.
* The architectural claims you listed (specific subsystems, token window of ~1M, “edge-preserving filters”, etc.) are not supported in public documentation.
* For your future comparisons: rely on behavioural deltas (tone, reasoning adaptivity, style controls, safety evals) unless OpenAI explicitly publishes architectural specs.

If you like, I can export this table as a shareable spreadsheet (CSV or Google Sheet) so you can slot it into your documentation toolbox.