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Favicon für openai

OpenAI: GPT-5.3-Codex

openai/gpt-5.3-codex

Vergleich

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results on SWE-Bench Pro and strong performance on Terminal-Bench 2.0 and OSWorld-Verified, reflecting improved multi-language coding, terminal proficiency, and real-world computer-use skills. The model is optimized for long-running, tool-using workflows and supports interactive steering during execution, making it suitable for complex development tasks, debugging, deployment, and iterative product work.

Beyond coding, GPT-5.3-Codex performs strongly on structured knowledge-work benchmarks such as GDPval, supporting tasks like document drafting, spreadsheet analysis, slide creation, and operational research across domains. It is trained with enhanced cybersecurity awareness, including vulnerability identification capabilities, and deployed with additional safeguards for high-risk use cases. Compared to prior Codex models, it is more token-efficient and approximately 25% faster, targeting professional end-to-end workflows that span reasoning, execution, and computer interaction.

Modalitäten
Eingabe- / Ausgabepreis
1,75 $ / 14 $pro 1 Mio.
Kontext
400K
Veröffentlicht
24. Feb. 2026
Vergleich
AnbieterPreiseLeistungVerfügbarkeitLeistungsvergleicheAppsAktivitätDokumentationFAQEntdecken

Anbieter

Verschiedene Unternehmen hosten dasselbe Modell. OpenRouter leitet Ihre Anfrage je nach gewähltem Routing-Modus an eines davon weiter — Balanced (Preis + Geschwindigkeit), Nitro (am schnellsten) oder Floor (am günstigsten).

Preise

Der durchschnittliche Preis, den Kunden tatsächlich für dieses Modell zahlen, neben den von Anbietern veröffentlichten Preisen. Durch Caching und Rabatte liegt der tatsächlich gezahlte Preis oft deutlich unter dem Listenpreis.

Leistung

Der Durchsatz gibt an, wie schnell das Modell schreibt (Token pro Sekunde – höher ist besser). Die Latenz ist die gesamte Umlaufzeit (niedriger ist besser). TTFT ist die Zeit bis zum ersten Token – also die Wartezeit, bis etwas angezeigt wird (niedriger ist besser).

Verfügbarkeit

Verfügbarkeit ist der prozentuale Anteil der letzten 3 Tage, in dem mindestens ein Anbieter auf Anfragen reagiert hat. Die Verfügbarkeit der Inferenz ist der prozentuale Anteil der Zeit, in der Inferenz erfolgreich bereitgestellt wurde. OpenRouter überwacht dies kontinuierlich und verwendet den nächstbesten Anbieter, wenn ein Anbieter einen Fehler zurückgibt.

Leistungsvergleiche

Ergebnisse standardisierter Bewertungen und eigene Ausgaben dieses Modells zu gemeinsamen Vergleichstest-Prompts. Höhere Prozentwerte sind besser – und jeder Rang zeigt, wo dieses Modell unter den anhand dieser Quelle bewerteten Modellen liegt.

Zusammenfassung der Benchmark-Ergebnisse für OpenAI: GPT-5.3-Codex (Artificial Analysis, Design Arena und Vals AI)
QuelleBenchmarkErgebnis
Artificial AnalysisGPT-5.3 Codex (Xhigh) GPQA Diamond91.5%
Artificial AnalysisGPT-5.3 Codex (Xhigh) HLE42.5%
Artificial AnalysisGPT-5.3 Codex (Xhigh) IFBench75.4%
Artificial AnalysisGPT-5.3 Codex (Xhigh) τ²-Bench Telecom86.0%
Artificial AnalysisGPT-5.3 Codex (Xhigh) AA-LCR83.3%
Artificial AnalysisGPT-5.3 Codex (Xhigh) CritPt16.9%
Artificial AnalysisGPT-5.3 Codex (Xhigh) Terminal-Bench Hard53.0%
Design ArenaGPT-5.3 Codex Agents Arena Androidnative Elo1084
Design ArenaGPT-5.3 Codex Agents Arena Full Stack Elo983
Design ArenaGPT-5.3 Codex Agents Arena Godotgamedev Elo1124
Design ArenaGPT-5.3 Codex Agents Arena Mobile Apps Elo1053
Design ArenaGPT-5.3 Codex Agents Arena Webapps Elo1017
Design ArenaGPT-5.3 Codex Models Arena 3D Elo1005
Design ArenaGPT-5.3 Codex Models Arena Asciiart Elo1149
Design ArenaGPT-5.3 Codex Models Arena Code Categories Elo1143
Design ArenaGPT-5.3 Codex Models Arena Data Visualization Elo1164
Design ArenaGPT-5.3 Codex Models Arena Game Development Elo1161
Design ArenaGPT-5.3 Codex Models Arena SVG Elo1126
Design ArenaGPT-5.3 Codex Models Arena UI Component Elo1132
Design ArenaGPT-5.3 Codex Models Arena Website Elo1161
Vals AIGPT 5.3 Codex IOI53.8%
Vals AIGPT 5.3 Codex LiveCodeBench87.3%
Vals AIGPT 5.3 Codex SWE-bench78.0%
Vals AIGPT 5.3 Codex Terminal-Bench 2.064.0%
Vals AIGPT 5.3 Codex Vibe Code Bench v1.161.8%

Apps

Öffentliche Apps, die den meisten Datenverkehr an dieses Modell senden. Ein guter Anhaltspunkt dafür, wie echte Produktionsworkloads aussehen – und ein Hinweis darauf, für welche Anwendungsfälle dieses Modell am besten geeignet ist.

Aktivität

Token-Volumen und Anfrageaufkommen für dieses Modell im Zeitverlauf.

API

Direkt einsetzbarer Code zum Aufrufen dieses Modells. Die API von OpenRouter ist OpenAI-kompatibel – bei den meisten SDKs genügt es, die Basis-URL auszutauschen. Zwischen den Modellen ändert sich nur der unten stehende Modell-Slug.

Derzeit nicht über EU-regionales Routing verfügbar. Dokumentation zum regionsinternen Routing

Dokumentation

Anleitungen, Rezeptsammlungen, Blogbeiträge und Tools für die Entwicklung mit OpenAI: GPT-5.3-Codex auf OpenRouter.

  • GPT-5.4 Migration GuideRezeptsammlung

Weitere Modelle entdecken

KI-Modelle mit Bildverarbeitung: Multimodale LLMs für das BildverständnisSammlungKI-ModellranglistenRangliste
Latenz / Durchsatz
1,75 $14,00 $0,175 $2,36s35 tps
100,00 %
1,75 $14,00 $0,175 $1,82s68 tps
100,00 %
Nicht beim Routing im Modus Standard verwendet:Warum diese Endpunkte nicht verwendet werden
Fast
3,50 $28,00 $0,350 $0,92s156 tps
--
Durchsatz
156Token/s

P50, bester Wert über alle Anbieter hinweg

Latenz
0,92s

P50, bester Anbieter

AutoExacto-Leistungsvergleiche
TAU-BenchOpenAI75,3 %
Verfügbarkeit (3 Tage)Das Modell war erreichbar. Die Anfrage wurde an einen Anbieter weitergeleitet.
100,00 %
Verfügbarkeit (3 Tage)Das Modell hat über einen beliebigen Anbieter ein Inferenzergebnis zurückgegeben. Fehler und leere Antworten wirken sich negativ darauf aus.
77,10 %

Verfügbarkeit in den letzten 3 Tagen

Letzte 72 Stunden
Verfügbarkeit 77,10 %
Vor 3 TagenVor 2 TagenGesternJetzt

Verfügbarkeit in den letzten 24 Stunden

OpenRouter Availability
86,30 %
Without Routing
86,08 %

Wenn bei einem vorgelagerten Anbieter ein Fehler auftritt, können wir diesen durch die Weiterleitung an einen anderen funktionsfähigen Anbieter beheben, sofern Ihre Anfragefilter dies zulassen. Sie können programmgesteuert auf die Verfügbarkeitsdaten pro Anbieter zugreifen, und zwar über die Endpunkt-API. Erfahren Sie mehr über unsere Optionen für Lastverteilung und Anbieter-Routing.

1.
Favicon für https://www.framer.com/
Framer
Create a professional website with Framer’s no-code AI website builder. Design freely, manage CMS content, optimize SEO, collaborate, and publish fast.
68,6BToken
2.
Favicon für https://openai.com/codex
Codex
A coding agent that helps you build and ship with AI
49,8BToken
3.
Favicon für https://www.ito.ai/
Ito
Agentic QA platform that actually runs your app
14,7BToken
4.
Favicon für https://kilocode.ai/
Kilo Code
Kilo Code is an open-source AI coding agent that works across VS Code, JetBrains, and CLI to help developers ship code faster with agentic workflows.
1,82BToken
5.
Favicon für https://nousresearch.com
Hermes Agent
Hermes Agent is an open-source, self-improving AI agent by Nous Research that runs persistently with memory across sessions, and builds reusable skills from experience. It comes with 40+ built-in tools, including web search, browser automation, and vision, plus scheduled automations and subagents.
1,64BToken

Häufig gestellte Fragen

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2.

Die Dokumentation zu GPT-5.3-Codex auf OpenRouter umfasst das Cookbook GPT-5.4 Migration Guide. Der Schnellstart behandelt API-Schlüssel und Ihre erste Anfrage, und die API-Referenz listet alle Parameter auf.

GPT-5.3-Codex kostet 1,75 $/M Eingabe-Token und 14,00 $/M Ausgabe-Token, mit separaten Tarifen für Cache Read für 0,175 $/M tokens.

GPT-5.3-Codex hat ein Kontextfenster von 400.000 Token. Es unterstützt bis zu 128.000 Completion-Token.

Ja. GPT-5.3-Codex akzeptiert tools und tool_choice für Funktionsaufrufe. Es unterstützt auch strukturierte Ausgaben über ein JSON-Schema in response_format.

GPT-5.3-Codex akzeptiert Text, Bilder und Dateien wie PDFs als Eingabe und gibt Text zurück.

GPT-5.3-Codex wird auf OpenRouter von 2 Anbietern bereitgestellt: Azure und OpenAI. Anfragen werden an den besten verfügbaren Anbieter weitergeleitet, bei Ausfällen wird automatisch zu den anderen gewechselt, und Sie können Anbieter über das Anbieter-Routing festlegen oder ausschließen.

GPT-5.3-Codex wurde am 24. Februar 2026 veröffentlicht.

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