GPT Realtime 2
Data as of September 18, 2026 · How the score is built
GPT Realtime 2 will be repriced, updated or retired. Get each notice with its source and date. Follow model changes
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Voice benchmark evidence
Audio Realism Benchmark is an owner-defined voice evaluation. Its result stays separate from BenchLM's weighted text-model ranking.
Spec sheet
Each documented value carries its source. Missing fields stay visible as not sourced or not published, rather than disappearing from the page.
- API model ID
- gpt-realtime-2OpenAI model documentation
- Context window
- 128KOpenAI model documentation
- Maximum output
- Not sourced yet
- Knowledge cutoff
- Not sourced yet
- Input modalities
- Not sourced yet
- Output modalities
- Not sourced yet
- Parameters
- Not disclosed by the provider
- Availability
- Provider-hosted access; consult the linked documentation for current availability.
- Cloud regions
- Not tracked yet
- Lifecycle
- Tracked
- API capabilities
- Tool calling, structured outputs, and batch support are not tracked yet
- Prompt caching
- Published at $0.40 per million cached input tokensOpenAI model documentation
- Self-host
- Weights are not published
- Rate limits
- Not tracked yet
Lineage
The sequence follows explicit supersedes links. A successor's displayed score stays at least 0.1 points above its predecessor; raw benchmark rows do not move. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.
Release date not sourced · you are here
GPT Realtime 2Not publicly ranked · $4 / $24
Base entry
How to read this profile
The visual layer above carries the decisions. These notes preserve the model, ranking, coverage, and family context behind the numbers.
We track GPT Realtime 2, but no weighted text-model benchmark result is published on the site yet. This page shows the metadata and separate protocol evidence we can verify now; a BenchLM score will appear only if compatible public evaluations land.
GPT Realtime 2 is a proprietary model with a 128K context window. No explicit reasoning mode is documented in this profile.
Provider-hosted access; consult the linked documentation for current availability.
GPT Realtime 2 is tracked because it appears in audioagentbench. Voice-protocol results remain separate from BenchLM's weighted text-model ranking.
The profile has no source-displayable benchmark row yet.
Questions
How does GPT Realtime 2 perform overall in AI benchmarks?
GPT Realtime 2 does not have any source-displayable benchmark rows yet, so this profile does not assign a public score or rank. Documented specifications remain visible, while score-led charts and claims stay unavailable until a published evaluation can be attached to the exact model.
Does GPT Realtime 2 have full benchmark coverage on BenchLM?
No. GPT Realtime 2 currently has 0 source-displayable rows across 446 tracked benchmark slots. The profile exposes published, non-generated evidence and leaves missing categories blank until an exact evaluation is available. Coverage describes how much was measured; it is not a penalty added to an individual benchmark result.
What is the context window size of GPT Realtime 2?
GPT Realtime 2 has a documented context window of 128K. That figure is the maximum combined prompt and retained-conversation space reported for this exact model; it is not the maximum output length. The profile keeps output limits separate because providers often publish those limits independently.
Compare GPT Realtime 2 with every tracked model490 comparisons
Last updated September 18, 2026. Runtime fields remain blank until a sourced snapshot exists.
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