GPT
FamilyOpenAI · GPT
OpenAI's GPT family from cost-efficient mini tiers to premium Pro and Codex variants for production AI systems.
Overview
This is a model family overview. For version-specific details, see the individual model entries linked below.
GPT is OpenAI’s core model family for assistant, reasoning, and coding workloads. The lineup now spans faster day-to-day tiers, harder reasoning tiers, coding-specialized Codex variants, and premium Pro escalation routes. In practice, most teams use GPT via routing rather than one static model choice.
Current Lineup
At this snapshot date, the latest named entries in the GPT-5 generation include GPT-5.3, GPT-5.3-Codex, GPT-5.4, and GPT-5.4-Pro, alongside cost-efficient tiers like GPT-5 mini and GPT-5 nano. Earlier GPT-5 and GPT-5.2 variants remain useful historical references but are no longer the current lineup focus.
Strengths
- Strong general-purpose quality across reasoning, coding, and structured workflows.
- Mature API/tooling ecosystem for production integration.
- Broad tiering for cost-quality routing strategies.
- Large context support in flagship tiers for long-document and agent workflows.
- Frequent model iteration with clear upgrade paths.
Tier Guide
- GPT-5.3: current fast default for everyday work.
- GPT-5.3-Codex: current coding-specialized tier for software engineering tasks.
- GPT-5.4: current high-capability general model for harder workflows.
- GPT-5.4-Pro: premium quality tier for highest-stakes tasks.
- GPT-5 mini / nano: cost-efficient options for high-volume automation.
- o-series: separate reasoning-specialized family for targeted deep-analysis routes.
Access
- OpenAI API
- OpenAI first-party product surfaces
- Partner platforms exposing OpenAI model endpoints
Model Versions
GPT-5.3-Codex
currentLatest Codex-tuned GPT-5 model for repository-scale implementation, review, and agent workflows.
GPT-5.3
currentFast everyday GPT-5 tier tuned for general work, coding, and lower-cost production usage.
GPT-5.4-Pro
currentHighest-capability GPT-5 tier for decision-ready analysis and the most demanding professional workflows.
GPT-5.4
currentCurrent high-capability GPT-5 tier for difficult professional tasks, coding, and longer agent workflows.
GPT-5.2-Codex
legacyEarlier GPT-5 Codex variant retained as historical context after GPT-5.3-Codex.
GPT-5.2-Pro
legacyEarlier premium GPT-5.2 tier retained as historical context after GPT-5.4-Pro.
GPT-5.2
legacyEarlier GPT-5.2 generation entry retained as historical context after GPT-5.3 and GPT-5.4.
GPT-5-Codex
legacyEarlier GPT-5 Codex release entry, superseded by newer GPT-5.3-Codex in the current lineup.
GPT-5 nano
currentUltra-low-cost GPT-5 tier for high-throughput automation and lightweight reasoning tasks.
GPT-5 mini
currentCost-efficient GPT-5 variant for high-volume production workflows needing strong reasoning at lower cost.
GPT-5
legacyOriginal GPT-5 release entry, now superseded by newer GPT-5.3 and GPT-5.4 generation variants.
GPT-4.1
legacyLong-context multimodal model retained as a legacy reference after retirement from ChatGPT defaults.
GPT-4o mini Transcribe
currentLower-cost OpenAI speech-to-text tier for high-volume transcription pipelines.
GPT-4o mini TTS
currentOpenAI text-to-speech model for responsive, API-first voice output workflows.
GPT-4o Transcribe
currentOpenAI speech-to-text model tier for production transcription and voice pipeline workflows.
GPT-4o mini
currentLower-cost GPT-4o tier for high-volume multimodal assistant and automation workloads.
GPT-4o
legacyWidely deployed multimodal model kept as a legacy reference after retirement from ChatGPT defaults.