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OpenAI: GPT-5.1 (batch) API Pricing
GPT-5.1 is the latest frontier-grade model in the GPT-5 series, offering stronger general-purpose reasoning, improved instruction adherence, and a more natural conversational style compared to GPT-5. It uses adaptive reasoning...
How much does OpenAI: GPT-5.1 (batch) cost for a real workload?
At 10M input + 2M output tokens per month, OpenAI: GPT-5.1 (batch) costs about $16.25 ($6.25 input + $10 output). Try your own volumes in the cost calculator.
What are cheaper alternatives to OpenAI: GPT-5.1 (batch)?
- Mistral: Mistral Large 4 — $1.36 in / $4.18 out per 1M
- Meta: Muse Spark Open — $1.25 in / $4.25 out per 1M
- Meta: Muse Spark 1.3 — $1.25 in / $4.25 out per 1M
- Meta: Muse Spark 1.2 — $1.25 in / $4.25 out per 1M
- Meta: Muse Spark 1.1 — $1.25 in / $4.25 out per 1M
- OpenAI: o4 Mini High — $1.1 in / $4.4 out per 1M
Compare OpenAI: GPT-5.1 (batch) with other models
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Frequently asked questions
How much does OpenAI: GPT-5.1 (batch) cost?
OpenAI: GPT-5.1 (batch) costs $0.625 per 1M input tokens and $5 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $16.25.
What is the context window of OpenAI: GPT-5.1 (batch)?
OpenAI: GPT-5.1 (batch) has a context window of 400,000 tokens and can return up to 128,000 output tokens per response.
What are cheaper alternatives to OpenAI: GPT-5.1 (batch)?
Cheaper models include Mistral: Mistral Large 4 ($1.36 in / $4.18 out), Meta: Muse Spark Open ($1.25 in / $4.25 out), Meta: Muse Spark 1.3 ($1.25 in / $4.25 out). See the full list on this page.
Is OpenAI: GPT-5.1 (batch) free to use?
No. OpenAI: GPT-5.1 (batch) is a paid model at $0.625 input / $5 output per 1M tokens. 20 free models are listed on the free models page.
Provider: openai · Model ID: openai/gpt-5.1:batch · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices