GPT-Realtime-2.1: audio pricing, latency and capabilities

Prices from official vendor price lists · October 2026

Top of OpenAI’s range and dearer than 94% of this rating. Worth it when the first answer has to be right — GPT-Realtime-2.1 Mini handles routine work for about 10× less.

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Capabilities

API $/1M (in / out)

$4 / $24

Context window

128K tokens

Price / mo

API only

Overview Reviews

GPT-Realtime-2.1 is an AI model from OpenAI, priced at $4 input and $24 output per 1M tokens. That places it in the frontier tier of this rating — dearer than 94% of the 205 priced models listed.

It holds 128K tokens in a single conversation. Capabilities recorded in this rating: text & chat, vision, audio, realtime voice, structured JSON output. Access is through the API rather than a consumer subscription.

API price$4 / $24per 1M tokens, in / out

Context128K tokenstokens per conversation

VendorOpenAIall models from this vendor

TierFrontierdearer than 94% of models

Cost calculator

1M tokens/mo10M tokens/mo50M tokens/mo200M tokens/mo

Standard$19.00~~AED 70 per month~~

With batch −50%$9.50~~AED 35 per month~~

With caching on input$18.10~~AED 66 per month~~

Standard$190~~AED 698 per month~~

With batch −50%$95.00~~AED 349 per month~~

With caching on input$181~~AED 665 per month~~

Standard$950~~AED 3,489 per month~~

With batch −50%$475~~AED 1,744 per month~~

With caching on input$905~~AED 3,324 per month~~

Standard$3,800~~AED 13,956 per month~~

With batch −50%$1,900~~AED 6,978 per month~~

With caching on input$3,620~~AED 13,294 per month~~

Assumes a 1:3 input-to-output ratio, which is typical for chat and generation. Dirham figures use 3.6725 per dollar. Batch and caching discounts apply where the vendor offers them.

Compared with alternatives

How GPT-Realtime-2.1 sits against its neighbours in this rating. Tap a card to open that model.

Good and poor fit

Good fit

Reading screenshots, charts, scanned documents and photos.
Live voice conversation where turn-taking latency matters.

Poor fit

Integrations that depend on structured function calls.

Related filters

Text & chat234 models for text generation and chat

Vision159 models that read images

Realtime voice7 models for live voice conversation

Code execution47 models that run code in a sandbox

Prompt caching153 models with cheap repeated context

OpenAI30 models from this vendor

All 245 modelsThe full rating with filters and prices

Frequently asked questions

How much does GPT-Realtime-2.1 cost?

$4 / $24 per 1M tokens, input and output. In dirhams that is roughly AED 14.69 per 1M input tokens. Batch processing halves it where the vendor offers it.

What is the context window of GPT-Realtime-2.1?

128K tokens in a single conversation.

What can GPT-Realtime-2.1 do?

In this rating it is recorded with: text & chat, vision, audio, realtime voice, structured JSON output, code execution, prompt caching, batch API, priority / fast tier, multilingual, proprietary API.

Is GPT-Realtime-2.1 a good choice?

It depends on the job. See the good-fit and poor-fit lists above, and compare against the neighbouring models before committing.

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