OpenAI's ChatGPT web app frontend has new strings referencing 'GPT-5', 'GPT-5-pro', 'GPT-5

EXHIBIT 861 · FLASH

Aug 20, 2026 06:16 UTC web app https://chatgpt.com

OpenAI's ChatGPT web app frontend has new strings referencing 'GPT-5', 'GPT-5-pro', 'GPT-5-thinking', and 'GPT-5.6-luna-wm', alongside various 'gpt-4o' sub-models and numerous internal feature flags and endpoints.

READY TO POST:

Looks like openai's latest web app deploy has a bunch of new model IDs, including mentions of 'gpt-5', 'gpt-5-pro', and even 'gpt-5.6-luna-wm'. could be early signs of their next gen model!

openai is internally testing a ton of new stuff! spotted 'gpt-5' model strings and several 'gpt-4o' variations like 'gpt-4o-mini-filled' in their latest frontend bundle. always exciting to see what's cooking.

⚠️ FROM WEB-APP BUNDLE — may include vendored-dependency strings, verify before posting. ChatGPT web app (https://chatgpt.com) deployed new frontend code [2accb556072dfbac -> 51672cc28376e838]: +53127 strings, -2344 strings, 308 interesting [model_id] (22) + /cdn/assets/gpt-details-gt8i8zk7.css + /cdn/assets/gpt-icon-h9k3y3p1.css + GPT-5 + admin/model-access/gpt-5.6-preview + gpt-4 + gpt-4l + gpt-4o + gpt-4o-gdrive + gpt-4o-gdrive-0212 + gpt-4o-gdrive-0314 + gpt-4o-gdrive-1007-mclick + gpt-4o-gdrive-1124 + gpt-4o-gdrive-1124-citation + gpt-4o-mini-filled + gpt-5 + gpt-5-pro + gpt-5-thinking + gpt-5.6-luna-wm + o3-mini-high-in-context-upsell-plus + o4-mini + routes/admin_.model-access.gpt-5[.]6-preview + ve reached the current usage cap for GPT-4. You can continue with the default model now, or try again {formattedTime}. <link>Learn more</link>`,values:{link:sXt,formattedTime:a}}):(0,ZH.jsx)($,{id:`TextMessageDisplay.gptUsageCapExceededCustomFeature`,defaultMessage:`You [feature_flag] (133) + ,"data-internal-model-search": + ,action:D,actionMessageDescriptor:Dz.focusPromptTextarea,group:J_.Internal,bindings:[{binding:[kv.Shift,kv.Escape]}]},{key: + ,e[e.INTERNAL=1]= + ,group:yye.Internal,bindings:[{binding:[ed.Shift,ed.ArrowDown]}],actionMessageDescriptor:Wd({id: + ,group:yye.Internal,bindings:[{binding:[ed.Shift,ed.ArrowUp]}],actionMessageDescriptor:Wd({id: + ,onChange:e=>{p(e.currentTarget.value)},placeholder:d.formatMessage(h4.internalModelsPlaceholder),selectAllOnFocus:!1,value:f}),(0,m4.jsx)( + ,void 0,{surface:e,account_scope:t,is_enabled:String(n)}),H.logStructuredEvent( + /cdn/assets/contentful-dynamic-feature-page-fojwnuy5.js + /cdn/assets/contentful-feature-page-kk3n3nd8.js + /cdn/assets/internal-render-conversation-lo3igjn7.js + /cdn/assets/internal-render-conversation_.queued-kseg1py2.js + /cdn/assets/internal.widget-studio.open-conversation-imoe7dyk.js + 3VyEPC5dTP_model_instruction