Migrating from gpt-4o-mini-realtime-preview to gpt-realtime-mini
What changes when you move from gpt-4o-mini-realtime-preview to gpt-realtime-mini: context window 16,000 → 32,000 tokens.
- Status
- Retired
- Shutdown
- May 7, 2026
- Time left
- —
- Status
- Deprecated
- Shutdown
- Jan 20, 2027
- Time left
- 97 days
gpt-realtime-mini is itself deprecated, shutting down Jan 20, 2027. Its replacement is gpt-realtime-2.1-mini.
Prices
USD per 1M tokens, standard tier| Type | gpt-4o-mini-realtime-preview | gpt-realtime-mini | Change |
|---|---|---|---|
| Input | Not published | $0.60first seen October 1, 2026 · source | — |
| Cached input | Not published | $0.06first seen October 1, 2026 · source | — |
| Output | Not published | $2.40first seen October 1, 2026 · source | — |
Other tiers, prompt-size bands and modalities are on each model's page.
Limits
Tokens| Limit | gpt-4o-mini-realtime-preview | gpt-realtime-mini | Change |
|---|---|---|---|
| Context window | 16,000 tokensin place when tracking began (October 6, 2026) · source | 32,000 tokensin place when tracking began (October 7, 2026) · source | +100% |
| Max output tokens | 4,096 tokensin place when tracking began (October 6, 2026) · source | 4,096 tokensin place when tracking began (October 7, 2026) · source | 0% |
Features and parameters
Compare modelsSame on both
- Function calling: supported on both.gpt-4o-mini-realtime-preview: in place when tracking began (October 6, 2026) · source · gpt-realtime-mini: in place when tracking began (October 7, 2026) · source
- Prompt caching: supported on both.gpt-4o-mini-realtime-preview: in place when tracking began (October 6, 2026) · source · gpt-realtime-mini: in place when tracking began (October 7, 2026) · source
- Batch API: not supported on both.gpt-4o-mini-realtime-preview: in place when tracking began (October 6, 2026) · source · gpt-realtime-mini: in place when tracking began (October 7, 2026) · source
- Fine-tuning: not supported on both.gpt-4o-mini-realtime-preview: in place when tracking began (October 6, 2026) · source · gpt-realtime-mini: in place when tracking began (October 7, 2026) · source
Not published for gpt-4o-mini-realtime-preview: Structured outputs, Image input, PDF input, Reasoning / thinking, Built-in web search, temperature parameter, top_p parameter, logprobs.
Not published for gpt-realtime-mini: Structured outputs, Image input, PDF input, Reasoning / thinking, Built-in web search, temperature parameter, top_p parameter, logprobs.
Aliases
All aliasesNo aliases point at either model.
On cloud platforms
All platform dates| Model | Platform | Platform ID | Shutdown | Time left |
|---|---|---|---|---|
| gpt-realtime-mini | Microsoft Foundryversion 2025-12-15 | gpt-realtime-mini | Jun 15, 2027Active | 243 days |
Read daily from each platform's own pages. The status above uses each company's own date. Time left counts to 00:00 UTC on the shutdown date, which is the evening before in ET.
Checklist
- Change the model string from
gpt-4o-mini-realtime-previewtogpt-realtime-mini.
Compared from AIWire's published data when this page loaded. Each fact links to the page it came from. Model pages: gpt-4o-mini-realtime-preview, gpt-realtime-mini.