Models

OpenAI's third-generation image model with strong prompt following and text rendering.

Dedicated image generation model from OpenAI with high fidelity output.

Smaller, cheaper variant of OpenAI's GPT Image model.

Updated OpenAI image generation model with improved quality and resolution options.

OpenAI's GPT Image 2 image generation model.

Open-weight 117B MoE model (5.1B active) achieving near o4-mini reasoning. Apache 2.0 licensed, runs on a single 80GB GPU.

GPT-4.1, a proprietary OpenAI model available via OpenRouter.

GPT-4.1 Mini, a proprietary OpenAI model available via OpenRouter.

GPT-4.1 Nano, a proprietary OpenAI model available via OpenRouter.

OpenAI's flagship multimodal model with strong reasoning, coding, and vision capabilities.

Image generation via GPT-4o with native multimodal understanding.

Cost-efficient smaller GPT-4o variant for lightweight tasks.

Latest OpenAI transcription with lower error rates than Whisper. Recommended over Whisper for API use.

GPT-5, a proprietary OpenAI model available via OpenRouter.

GPT-5 variant optimized for code generation and software engineering.

Compact GPT-5 variant for lightweight tasks and rapid prototyping.

Ultra-lightweight GPT-5 for high-speed, low-cost text generation.

GPT-5 Pro, a proprietary OpenAI model available via OpenRouter.

GPT-5.1, a proprietary OpenAI model available via OpenRouter.

GPT-5.1 code-optimized variant.

GPT-5.1-Codex-Max, a proprietary OpenAI model available via OpenRouter.

GPT-5.1-Codex-Mini, a proprietary OpenAI model available via OpenRouter.

GPT-5.2 general-purpose model.

GPT-5.2 code-optimized variant.

GPT-5.2 Pro, a proprietary OpenAI model available via OpenRouter.

GPT-5.3 code-optimized variant.

OpenAI's latest frontier model combining reasoning, coding, and agentic workflows.

Latest GPT-5.4 code-optimized variant with industry-leading coding capabilities.

Compact GPT-5.4 variant balancing capability and cost.

Ultra-lightweight GPT-5.4 for high-speed, low-cost tasks.

Highest capability GPT-5.4 tier with maximum reasoning depth. Premium pricing.

GPT-5.5, a proprietary OpenAI model available via OpenRouter.

GPT-5.5 Pro, a proprietary OpenAI model available via OpenRouter.

OpenAI's video generation model with realistic physics, multi-scene control, and diverse visual styles.

OpenAI's fast text-to-speech model optimized for real-time use.

Higher quality TTS with improved naturalness and pronunciation accuracy.

Open-weight speech recognition supporting 50+ languages. Handles accents, noise, and technical language.

OpenAI's open-weight 20B model in the gpt-oss family — small, cheap, and self-hostable.

Reasoning-focused model with step-by-step deliberation for complex math, coding, and science tasks.

Most capable reasoning model in OpenAI's lineup with extended thinking for maximum reliability.

Lightweight reasoning model balancing chain-of-thought rigor with speed and cost efficiency.

OpenAI's most capable embedding model. 3072 dimensions, strong across retrieval, classification, and clustering.

Cost-efficient embedding model balancing performance and price. 1536 dimensions.