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GPT Audio Mini

Fast and lightTools

OpenAI · Released January 2026

A cost-efficient version of GPT Audio. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency.

It is part of OpenAI's GPT family, where GPT-6 Astra leads, GPT-6 Sol and GPT-6 Luna cover the capability and speed tiers below it, the GPT-5.6 generation sits behind them, and Pro servings trade speed for deeper computation.

Facts and pricing

Provider
OpenAI
Context window
128K tokens
Input price
7.2 credits / 1M tokens ($0.60 raw)
Output price
28.8 credits / 1M tokens ($2.40 raw)
Vision (image input)
No
Tool calling
Yes
Extended reasoning
No

Credits are what Zeplik bills: 1 credit = $0.10, computed from the raw provider rate with a 1.20x margin. Raw prices shown per 1M tokens.

Zeplik reads text aloud

Zeplik reads text aloud with xAI TTS, a different engine doing the same job. GPT Audio Mini itself is not one of the engines Zeplik runs.

Open the Zeplik speech tool with xAI TTS

What GPT Audio Mini is best for

Example prompts

Prompts that suit a fast and light model like GPT Audio Mini:

OpenAI family

ModelContextInput cr/MOutput cr/MReleased
GPT-6.1 Terra Pro1.1M12.060.0October 2026
GPT-6.1 Terra1.1M12.060.0October 2026
GPT-6.1 Sol Pro1.1M24.0120September 2026
GPT-6.1 Sol1.1M24.0120September 2026
GPT-6 Luna Pro (batch)1.1M0.603.0September 2026
GPT-6 Luna Pro1.1M1.26.0September 2026
GPT-6 Luna1.1M1.26.0September 2026
GPT-6 Luna (batch)1.1M0.603.0September 2026
GPT-6 Sol Pro (batch)1.1M12.060.0September 2026
GPT-6 Sol Pro1.1M24.0120September 2026

All 71 OpenAI models

Model comparisons

Frequently asked questions

What is GPT Audio Mini?
GPT Audio Mini is an AI model by OpenAI. A cost-efficient version of GPT Audio. The new snapshot features an upgraded decoder for more natural sounding voices and maintains better voice consistency.
How much does GPT Audio Mini cost on Zeplik?
Input tokens cost 7.2 credits per million and output tokens 28.8 credits per million (1 credit = $0.10; the raw provider rates are $0.60 and $2.40 per million). New accounts start with free credits.
How long can a conversation with GPT Audio Mini be?
GPT Audio Mini has a 128K-token context window (128,000 tokens), which covers the conversation plus any documents you attach.
Does GPT Audio Mini support images and tools?
GPT Audio Mini is text-only and supports tool calling.

Related models

GPT-6.1 Terra ProFrontier

GPT-6.1 Terra Pro is the same underlying model as [GPT-6.1 Terra](https://openrouter.ai/openai/gpt-6.1-terra), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks.

1.1M ctx60.0 cr/M outOctober 2026
GPT-6.1 TerraFrontier

GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol.

1.1M ctx60.0 cr/M outOctober 2026
GPT-6.1 Sol ProFrontier

GPT-6.1 Sol Pro is the same underlying model as [GPT-6.1 Sol](https://openrouter.ai/openai/gpt-6.1-sol), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks.

1.1M ctx120 cr/M outSeptember 2026
GPT-6.1 SolFrontier

GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series.

1.1M ctx120 cr/M outSeptember 2026
GPT-6 Luna Pro (batch)General purpose

GPT-6 Luna Pro is the same underlying model as [GPT-6 Luna](https://openrouter.ai/openai/gpt-6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

1.1M ctx3.0 cr/M outSeptember 2026
GPT-6 Luna ProGeneral purpose

GPT-6 Luna Pro is the same underlying model as [GPT-6 Luna](https://openrouter.ai/openai/gpt-6-luna), served with `reasoning.mode` set to `pro` for higher-quality responses on complex tasks. Learn more in OpenAI's docs: https://developers.openai.com/api/docs/guides/reasoning#reasoning-mode

1.1M ctx6.0 cr/M outSeptember 2026

More you can do with GPT Audio Mini