GPT-4o Realtime Models by OpenAI
Last refreshed 2026-05-19. Next refresh: weekly.
Capabilities
About
GPT-4o, a revolutionary model by OpenAI, advances multimodal AI by integrating text, audio, and vision processing within a single neural network 135. Unlike its predecessors, it doesn't require separate pipelines for different modalities, allowing all inputs and outputs—text, audio, and images—to be processed seamlessly, leading to faster response times and improved contextual understanding 6. This enables more natural interactions, including real-time translation and nuanced audio and image analysis. Optimized tokenization, especially for non-Roman alphabets, increases efficiency and reduces costs. The GPT-4o family also includes a smaller, cost-effective version, GPT-4o mini, maintaining core capabilities with enhanced speed and efficiency 11. OpenAI plans to extend its capabilities by incorporating audio and video functionalities progressively 1.
Decision facts
- Best fit
- realtime voicevision and multimodal workcode execution
- Capability starting point
- GPT-4o Realtime Preview (12-17) with 128k context and multimodal inputs
- Lowest tracked input
- Not tracked
- Closest related family
- GPT Realtime 2
Archived Variants
Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.
Keep for legacy integrations; evaluate gpt-realtime-1.5 before new work.
Keep for legacy integrations; evaluate gpt-realtime-mini before new work.
Keep for legacy integrations; evaluate GPT-4o Realtime Preview (12-17) before new work.
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| GPT-4o Realtime Preview (12-17) | Keep for legacy integrations; evaluate gpt-realtime-1.5 before new work. | 2024-12 | realtime voice128k contextcode execution | Replaced |
| GPT-4o mini Realtime Preview (12-17) | Keep for legacy integrations; evaluate gpt-realtime-mini before new work. | 2024-12 | realtime voice128k contextcode execution | Replaced |
| GPT-4o Realtime Preview (10-01) | Keep for legacy integrations; evaluate GPT-4o Realtime Preview (12-17) before new work. | 2024-10 | realtime voice128k contextcode execution | Replaced |
Release Timeline
2 release groupsReplaced By
Keep for legacy integrations; evaluate gpt-realtime-1.5 before new work.
Keep for legacy integrations; evaluate gpt-realtime-mini before new work.
Keep for legacy integrations; evaluate GPT-4o Realtime Preview (12-17) before new work.
Specifications(3 models)
| Model | Released | Context | Vision | Code Exec |
|---|---|---|---|---|
| GPT-4o Realtime Preview (12-17) | 2024-12 | 128k | Yes | Yes |
| GPT-4o mini Realtime Preview (12-17) | 2024-12 | 128k | Yes | Yes |
| GPT-4o Realtime Preview (10-01) | 2024-10 | 128k | Yes | Yes |
