{"id":8239,"date":"2026-02-17T06:05:30","date_gmt":"2026-02-17T05:05:30","guid":{"rendered":"https:\/\/1ai.cz\/ainovinky\/gpt-5-3-codex-model-ktery-pomohl-vyvinout-sam-sebe-je-o-ctvrtinu-rychlejsi\/"},"modified":"2026-02-17T06:05:30","modified_gmt":"2026-02-17T05:05:30","slug":"gpt-5-3-codex-model-ktery-pomohl-vyvinout-sam-sebe-je-o-ctvrtinu-rychlejsi","status":"publish","type":"post","link":"https:\/\/1ai.cz\/ainovinky\/gpt-5-3-codex-model-ktery-pomohl-vyvinout-sam-sebe-je-o-ctvrtinu-rychlejsi\/","title":{"rendered":"GPT-5.3-Codex: Model, kter\u00fd pomohl vyvinout s\u00e1m sebe, je o \u010dtvrtinu rychlej\u0161\u00ed"},"content":{"rendered":"

OpenAI pr\u00e1v\u011b p\u0159edstavila GPT-5.3-Codex<\/strong> \u2013 model, kter\u00fd podle spole\u010dnosti p\u0159edstavuje historick\u00fd miln\u00edk. Poprv\u00e9 toti\u017e \u0161lo o um\u011blou inteligenci, kter\u00e1 se pod\u00edlela na vlastn\u00edm v\u00fdvoji<\/strong>. T\u00fdm Codex pou\u017e\u00edval ran\u00e9 verze modelu k lad\u011bn\u00ed tr\u00e9ninku, spr\u00e1v\u011b nasazen\u00ed a diagnostice test\u016f. A v\u00fdsledek? O 25 % rychlej\u0161\u00ed model s v\u00fdrazn\u011b lep\u0161\u00edmi schopnostmi.<\/p>\n

Nov\u00fd Codex spojuje pokro\u010dil\u00e9 k\u00f3dovac\u00ed dovednosti p\u0159edchoz\u00ed verze s roz\u0161\u00ed\u0159en\u00fdmi schopnostmi uva\u017eov\u00e1n\u00ed a profesion\u00e1ln\u00edch znalost\u00ed z GPT-5.2. Zaj\u00edmav\u00e9 je, \u017ee p\u0159i stejn\u00fdch \u00faloh\u00e1ch spot\u0159ebuje m\u00e9n\u011b ne\u017e polovinu token\u016f oproti verzi 5.2-Codex.<\/p>\n

P\u0159ekon\u00e1v\u00e1 v\u0161echny v benchmarkov\u00fdch testech<\/h2>\n

V benchmarku SWE-Bench Pro<\/strong>, kter\u00fd testuje re\u00e1ln\u00e9 softwarov\u00e9 in\u017een\u00fdrstv\u00ed ve \u010dty\u0159ech programovac\u00edch jazyc\u00edch, dos\u00e1hl GPT-5.3-Codex 57% \u00fasp\u011b\u0161nosti \u2013 nejv\u00edce ze v\u0161ech model\u016f. V Terminal-Bench 2.0<\/strong> pak zaz\u00e1\u0159il s v\u00fdsledkem 77,3 %<\/strong>, zat\u00edmco p\u0159edch\u016fdce dosahoval jen 64 %.<\/p>\n

Obzvl\u00e1\u0161\u0165 p\u016fsobiv\u00fd je v\u00fdsledek v OSWorld-Verified<\/strong>, benchmarku pro pou\u017e\u00edv\u00e1n\u00ed po\u010d\u00edta\u010de, kde model dokon\u010duje produktivn\u00ed \u00falohy ve vizu\u00e1ln\u00edm desktopov\u00e9m prost\u0159ed\u00ed. GPT-5.3-Codex zde dos\u00e1hl \u00fasp\u011b\u0161nosti 64,7 %<\/strong> oproti pouh\u00fdm 38,2 % u p\u0159edchoz\u00ed verze.<\/p>\n

Za p\u00e1r dn\u00ed vytvo\u0159\u00ed komplexn\u00ed hru<\/h2>\n

OpenAI p\u0159edvedla s\u00edlu modelu na praktick\u00fdch uk\u00e1zk\u00e1ch. Model dok\u00e1zal vytvo\u0159it pln\u011b funk\u010dn\u00ed z\u00e1vodn\u00ed hru s r\u016fzn\u00fdmi jezdci, osmi mapami a pou\u017eiteln\u00fdmi p\u0159edm\u011bty. Dal\u0161\u00ed demonstrac\u00ed byla pot\u00e1p\u011b\u010dsk\u00e1 hra, kde hr\u00e1\u010d prozkoum\u00e1v\u00e1 \u00fatesy, sb\u00edr\u00e1 ryby a mus\u00ed hl\u00eddat kysl\u00edk, tlak i nebezpe\u010d\u00ed. To v\u0161e vzniklo b\u011bhem n\u011bkolika dn\u00ed<\/strong>.<\/p>\n

U\u017eivatel\u00e9 u\u017e testuj\u00ed mo\u017enosti modelu \u2013 nap\u0159\u00edklad vytv\u00e1\u0159en\u00ed Minecraft klon\u016f v Three.js prob\u00edh\u00e1 hladce a p\u0159ekvapiv\u011b rychle. Pro experimenty s r\u016fzn\u00fdmi AI n\u00e1stroji nav\u0161tivte 1AI.cz<\/a>, kde najdete p\u0159ehled aktu\u00e1ln\u00edch technologi\u00ed.<\/p>\n

Nejen pro program\u00e1tory<\/h2>\n

GPT-5.3-Codex nen\u00ed ur\u010den pouze pro psan\u00ed k\u00f3du. Podporuje cel\u00fd \u017eivotn\u00ed cyklus softwaru \u2013 od lad\u011bn\u00ed, nasazov\u00e1n\u00ed a monitoringu p\u0159es psan\u00ed PRD dokument\u016f, \u00fapravy text\u016f, u\u017eivatelsk\u00fd v\u00fdzkum a\u017e po testov\u00e1n\u00ed a metriky. Agentick\u00e9 schopnosti modelu p\u0159esahuj\u00ed oblast softwaru a pomohou vytvo\u0159it prakticky cokoli \u2013 od prezentac\u00ed a\u017e po anal\u00fdzu dat v tabulk\u00e1ch.<\/p>\n

Model umo\u017e\u0148uje tak\u00e9 pr\u016fb\u011b\u017enou interakci. Podobn\u011b jako s kolegou m\u016f\u017eete b\u011bhem pr\u00e1ce model \u0159\u00eddit a poskytovat mu zp\u011btnou vazbu, ani\u017e by doch\u00e1zelo ke ztr\u00e1t\u011b kontextu.<\/p>\n

Bezpe\u010dnost na prvn\u00edm m\u00edst\u011b<\/h2>\n

OpenAI klasifikuje GPT-5.3-Codex jako prvn\u00ed model s High capability<\/strong> pro kybernetickou bezpe\u010dnost podle sv\u00e9ho Preparedness Framework. Jde tak\u00e9 o prvn\u00ed model p\u0159\u00edmo tr\u00e9novan\u00fd na identifikaci softwarov\u00fdch zranitelnost\u00ed.<\/p>\n

I kdy\u017e nen\u00ed definitivn\u00ed d\u016fkaz, \u017ee by model dok\u00e1zal pln\u011b automatizovat kybernetick\u00e9 \u00fatoky, OpenAI zvolila preventivn\u00ed p\u0159\u00edstup. Nasazuje komplexn\u00ed bezpe\u010dnostn\u00ed stack zahrnuj\u00edc\u00ed bezpe\u010dnostn\u00ed tr\u00e9nink, automatizovan\u00e9 monitorov\u00e1n\u00ed, d\u016fv\u011bryhodn\u00fd p\u0159\u00edstup k pokro\u010dil\u00fdm funkc\u00edm a vynucovac\u00ed pipeline v\u010detn\u011b threat intelligence.<\/p>\n

Kde model vyzkou\u0161\u00edte<\/h2>\n

GPT-5.3-Codex je dostupn\u00fd v r\u00e1mci placen\u00fdch pl\u00e1n\u016f ChatGPT v\u0161ude tam, kde lze Codex pou\u017e\u00edvat \u2013 v aplikaci, CLI, IDE roz\u0161\u00ed\u0159en\u00edch i na webu. OpenAI pracuje na bezpe\u010dn\u00e9m zp\u0159\u00edstupn\u011bn\u00ed tak\u00e9 p\u0159es API. D\u00edky vylep\u0161en\u00edm infrastruktury a inference stacku b\u011b\u017e\u00ed model o 25 % rychleji ne\u017e p\u0159edchoz\u00ed verze.<\/p>\n

Chcete b\u00fdt v obraze ohledn\u011b nejnov\u011bj\u0161\u00edch AI n\u00e1stroj\u016f? Sledujte novinky na 1AI.cz<\/a> a bu\u010fte v\u017edy o krok nap\u0159ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

OpenAI pr\u00e1v\u011b p\u0159edstavila GPT-5.3-Codex \u2013 model, kter\u00fd podle spole\u010dnosti p\u0159edstavuje historick\u00fd miln\u00edk. Poprv\u00e9 toti\u017e \u0161lo o um\u011blou inteligenci, kter\u00e1 se pod\u00edlela na vlastn\u00edm v\u00fdvoji. T\u00fdm Codex pou\u017e\u00edval ran\u00e9 verze modelu k lad\u011bn\u00ed tr\u00e9ninku, spr\u00e1v\u011b nasazen\u00ed a diagnostice test\u016f. A v\u00fdsledek? O 25 % rychlej\u0161\u00ed model s v\u00fdrazn\u011b lep\u0161\u00edmi schopnostmi. Nov\u00fd Codex spojuje pokro\u010dil\u00e9 k\u00f3dovac\u00ed dovednosti<\/p>\n","protected":false},"author":1,"featured_media":8238,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[523],"tags":[784,1312,1313,536,806],"class_list":{"0":"post-8239","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-chatboti","8":"tag-ai-agenti","9":"tag-gpt-5-3-codex","10":"tag-kodovani","11":"tag-openai","12":"tag-programovani"},"yoast_head":"\nGPT-5.3-Codex: Model, kter\u00fd pomohl vyvinout s\u00e1m sebe, je o \u010dtvrtinu rychlej\u0161\u00ed – 1ai.cz<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/1ai.cz\/ainovinky\/gpt-5-3-codex-model-ktery-pomohl-vyvinout-sam-sebe-je-o-ctvrtinu-rychlejsi\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"GPT-5.3-Codex: Model, kter\u00fd pomohl vyvinout s\u00e1m sebe, je o \u010dtvrtinu rychlej\u0161\u00ed\" \/>\n<meta property=\"og:description\" content=\"OpenAI pr\u00e1v\u011b p\u0159edstavila GPT-5.3-Codex \u2013 model, kter\u00fd podle spole\u010dnosti p\u0159edstavuje historick\u00fd miln\u00edk. Poprv\u00e9 toti\u017e \u0161lo o um\u011blou inteligenci, kter\u00e1 se pod\u00edlela na vlastn\u00edm v\u00fdvoji. T\u00fdm Codex pou\u017e\u00edval ran\u00e9 verze modelu k lad\u011bn\u00ed tr\u00e9ninku, spr\u00e1v\u011b nasazen\u00ed a diagnostice test\u016f. A v\u00fdsledek? O 25 % rychlej\u0161\u00ed model s v\u00fdrazn\u011b lep\u0161\u00edmi schopnostmi. 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