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Favicon de openai

OpenAI: GPT-5.3-Codex

openai/gpt-5.3-codex

Comparer

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.

Modalités
Prix en entrée / sortie
1,75 $US / 14 $USpar 1M
Contexte
400K
Publié
24 févr. 2026
Comparer
FournisseursTarificationPerformancesDisponibilitéÉvaluations comparativesApplicationsActivitéDocumentationFAQExplorer

Fournisseurs

Différentes entreprises hébergent le même modèle. OpenRouter achemine votre requête vers l’une d’elles selon le mode de routage choisi — Balanced (prix + vitesse), Nitro (le plus rapide) ou Floor (le moins cher).

Tarification

Le prix moyen que les clients paient réellement pour ce modèle, à côté des prix affichés par les fournisseurs. Grâce à la mise en cache et aux remises, le prix réellement payé est souvent bien inférieur au prix affiché.

Performances

Le débit est la vitesse à laquelle le modèle écrit (jetons par seconde — plus il est élevé, mieux c’est). La latence est le temps total d’aller-retour (plus il est faible, mieux c’est). Le TTFT est le délai avant le premier jeton — le temps avant de voir quelque chose apparaître (plus il est faible, mieux c’est).

Disponibilité

La disponibilité correspond au pourcentage des 3 derniers jours pendant lequel au moins un fournisseur répondait aux requêtes. La disponibilité du service correspond au pourcentage de temps pendant lequel l’inférence a été assurée avec succès. OpenRouter surveille en continu les fournisseurs et utilise le meilleur fournisseur suivant lorsque l’un d’eux renvoie une erreur.

Évaluations comparatives

Scores aux évaluations standardisées et réponses de ce modèle aux prompts communs des tests de référence. Des pourcentages plus élevés sont meilleurs — et chaque rang indique la position de ce modèle parmi les modèles évalués sur cette source.

Résumé des scores aux tests de performance pour OpenAI: GPT-5.3-Codex (Artificial Analysis, Design Arena et Vals AI)
SourceTest de performanceScore
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%

Applications

Applications publiques qui envoient le plus de trafic à ce modèle. Un bon indicateur des charges de travail réelles en production — et un aperçu des cas d’usage auxquels ce modèle convient le mieux.

Activité

Volume de jetons et trafic des requêtes vers ce modèle au fil du temps.

API

Code prêt à l’emploi pour appeler ce modèle. L’API d’OpenRouter est compatible avec OpenAI — la plupart des SDK fonctionnent en remplaçant simplement l’URL de base. Seul le slug du modèle ci-dessous change d’un modèle à l’autre.

Actuellement indisponible via le routage dans la région UE. Documentation sur le routage intrarégional

Documentation

Guides, recueils de recettes, articles de blog et outils pour développer avec OpenAI: GPT-5.3-Codex sur OpenRouter.

  • GPT-5.4 Migration GuideRecueil de recettes

Explorer d’autres modèles

Modèles d’IA avec vision : LLM multimodaux pour la compréhension d’imagesCollectionClassements des modèles d’IAClassement
Latence / débit
1,75 $US14,00 $US0,175 $US1,44s35 tps
100,00 %
1,75 $US14,00 $US0,175 $US2,45s74 tps
100,00 %
Non utilisé pour le routage Standard :Pourquoi ces points de terminaison ne sont pas utilisés
Fast
3,50 $US28,00 $US0,350 $US0,67s156 tps
--
Débit
156jetons/s

P50, meilleur résultat tous fournisseurs confondus

Latence
0,67s

P50, meilleur fournisseur

Évaluations comparatives AutoExacto
TAU-BenchOpenAI75,3 %
Disponibilité (3 j)Le modèle était joignable. Requête acheminée vers un fournisseur.
100,00 %
Disponibilité (3 j)Le modèle a renvoyé un résultat d’inférence, quel que soit le fournisseur. Les erreurs et les réponses vides sont comptabilisées à son détriment.
77,43 %

Disponibilité au cours des 3 derniers jours

72 dernières heures
Disponibilité 77,43 %
Il y a 3 joursIl y a 2 joursHierMaintenant

Disponibilité au cours des dernières 24 heures

OpenRouter Availability
88,11 %
Without Routing
87,89 %

Lorsqu’une erreur survient chez un fournisseur en amont, nous pouvons rétablir le service en routant la requête vers un autre fournisseur opérationnel, si les filtres de votre requête le permettent. Vous pouvez accéder par programmation aux données de disponibilité de chaque fournisseur via l’ API des points de terminaison. Découvrez nos options d’ équilibrage de charge et de routage des fournisseurs.

1.
Favicon de 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.
68,6Bjetons
2.
Favicon de https://openai.com/codex
Codex
A coding agent that helps you build and ship with AI
49,8Bjetons
3.
Favicon de https://www.ito.ai/
Ito
Agentic QA platform that actually runs your app
14,7Bjetons
4.
Favicon de 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.
1,82Bjetons
5.
Favicon de 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.
1,64Bjetons

Questions fréquentes

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.

La documentation de GPT-5.3-Codex sur OpenRouter comprend le guide de recettes GPT-5.4 Migration Guide. Le guide de démarrage rapide présente les clés API et votre première requête, et la référence API répertorie tous les paramètres.

GPT-5.3-Codex coûte 1,75 $US/M de jetons d’entrée et 14,00 $US/M de jetons de sortie, avec des tarifs distincts pour Cache Read à 0,175 $US/M tokens.

GPT-5.3-Codex dispose d’une fenêtre de contexte de 400 000 jetons. Il prend en charge jusqu’à 128 000 jetons de complétion.

Oui. GPT-5.3-Codex accepte tools et tool_choice pour l’appel de fonctions. Il prend également en charge les sorties structurées via un schéma JSON dans response_format.

GPT-5.3-Codex accepte texte, images et fichiers tels que des PDF en entrée et renvoie texte.

GPT-5.3-Codex est proposé par 2 fournisseurs sur OpenRouter : Azure et OpenAI. Les requêtes sont acheminées vers le meilleur fournisseur disponible, avec un basculement automatique vers les autres, et vous pouvez fixer ou exclure des fournisseurs avec le routage des fournisseurs.

GPT-5.3-Codex est sorti le 24 février 2026.

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