How much does GPT-5.1 (batch) cost?

GPT-5.1 (batch) costs $0.625/M input tokens and $5.00/M output tokens, with separate rates for Cache Read at $0.0625/M tokens and Web Search at $10.00/1K calls.

What is the context length of GPT-5.1 (batch)?

GPT-5.1 (batch) has a 400,000 token context window. It supports up to 128,000 completion tokens.

Does GPT-5.1 (batch) support tool calling and structured outputs?

Yes. GPT-5.1 (batch) accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

What inputs and outputs does GPT-5.1 (batch) support?

GPT-5.1 (batch) accepts images, text, and files such as PDFs as input and returns text.

Which providers serve GPT-5.1 (batch)?

GPT-5.1 (batch) is served by 1 provider on OpenRouter: OpenAI.

What other text models does OpenAI have?

GPT-6.1 Terra Pro, GPT-6.1 Terra, GPT-6 Luna Decisions and 58 more are other text models from OpenAI.

When was GPT-5.1 (batch) released?

GPT-5.1 (batch) was released on November 13, 2025.

OpenAI: GPT-5.1 (batch)

openai/gpt-5.1:batch

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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 to allocate computation dynamically, responding quickly to simple queries while spending more depth on complex tasks. The model produces clearer, more grounded explanations with reduced jargon, making it easier to follow even on technical or multi-step problems.

Built for broad task coverage, GPT-5.1 delivers consistent gains across math, coding, and structured analysis workloads, with more coherent long-form answers and improved tool-use reliability. It also features refined conversational alignment, enabling warmer, more intuitive responses without compromising precision. GPT-5.1 serves as the primary full-capability successor to GPT-5

Modalities

In / out price

$0.625 / $5per 1M

Context

400K

Released

Nov 13, 2025

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick: Balanced (price + speed), Nitro (fastest), or Floor (cheapest).


BYOK only	$0.625	$5.00	$0.0625	--	--	--

Input $0.625Output $5.00
BYOK only
-- tok/s-- uptime

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

GPT-5.1 (batch) — Price history

Price history

		$0.625	$5.00	$0.0625	—

Input $0.625Output $5.00

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Not enough uptime data to display yet.

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

Benchmarks

Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.

Benchmark score summary for OpenAI: GPT-5.1 (batch) (Artificial Analysis, Design Arena and Vals AI)
Source	Benchmark	Score
Artificial Analysis	GPT-5.1 (Non-reasoning) GPQA Diamond	64.3%
Artificial Analysis	GPT-5.1 (Non-reasoning) HLE	5.3%
Artificial Analysis	GPT-5.1 (Non-reasoning) IFBench	43.2%
Artificial Analysis	GPT-5.1 (Non-reasoning) τ²-Bench Telecom	46.5%
Artificial Analysis	GPT-5.1 (Non-reasoning) AA-LCR	45.0%
Artificial Analysis	GPT-5.1 (Non-reasoning) CritPt	0.0%
Artificial Analysis	GPT-5.1 (Non-reasoning) LiveCodeBench	49.4%
Artificial Analysis	GPT-5.1 (Non-reasoning) Terminal-Bench Hard	22.7%
Artificial Analysis	GPT-5.1 (Non-reasoning) MMLU-Pro	80.1%
Artificial Analysis	GPT-5.1 (Non-reasoning) AIME 2025	38.0%
Artificial Analysis	GPT-5.1 (High) Coding Index	49.4
Artificial Analysis	GPT-5.1 (High) GPQA Diamond	87.3%
Artificial Analysis	GPT-5.1 (High) HLE	28.5%
Artificial Analysis	GPT-5.1 (High) IFBench	72.9%
Artificial Analysis	GPT-5.1 (High) τ²-Bench Telecom	81.9%
Artificial Analysis	GPT-5.1 (High) AA-LCR	80.0%
Artificial Analysis	GPT-5.1 (High) τ-Bench Banking	15.9%
Artificial Analysis	GPT-5.1 (High) GDPval-AA	16.7%
Artificial Analysis	GPT-5.1 (High) CritPt	4.9%
Artificial Analysis	GPT-5.1 (High) LiveCodeBench	86.8%
Artificial Analysis	GPT-5.1 (High) Terminal-Bench Hard	45.5%
Artificial Analysis	GPT-5.1 (High) Terminal-Bench 2.1	52.4%
Artificial Analysis	GPT-5.1 (High) MMLU-Pro	87.0%
Artificial Analysis	GPT-5.1 (High) AIME 2025	94.0%
Design Arena	GPT-5.1 (High) Models Arena 3D Elo	1040
Design Arena	GPT-5.1 (High) Models Arena Asciiart Elo	1056
Design Arena	GPT-5.1 (High) Models Arena Code Categories Elo	1160
Design Arena	GPT-5.1 (High) Models Arena Data Visualization Elo	1191
Design Arena	GPT-5.1 (High) Models Arena Game Development Elo	1168
Design Arena	GPT-5.1 (High) Models Arena SVG Elo	1138
Design Arena	GPT-5.1 (High) Models Arena UI Component Elo	1148
Design Arena	GPT-5.1 (High) Models Arena Website Elo	1179
Vals AI	GPT 5.1 AIME	93.3%
Vals AI	GPT 5.1 CaseLaw v2	73.4%
Vals AI	GPT 5.1 CorpFin v2	63.8%
Vals AI	GPT 5.1 Finance Agent v1.1	55.3%
Vals AI	GPT 5.1 GPQA Diamond	86.6%
Vals AI	GPT 5.1 IOI v1	21.5%
Vals AI	GPT 5.1 LiveCodeBench	86.5%
Vals AI	GPT 5.1 LegalBench	85.7%
Vals AI	GPT 5.1 MedCode	52.7%
Vals AI	GPT 5.1 MedQA	96.4%
Vals AI	GPT 5.1 MedScribe	88.1%
Vals AI	GPT 5.1 MGSM	93.0%
Vals AI	GPT 5.1 MMLU Pro	86.4%
Vals AI	GPT 5.1 MMMU Pro	83.2%
Vals AI	GPT 5.1 MortgageTax	61.4%
Vals AI	GPT 5.1 SAGE v1	43.2%
Vals AI	GPT 5.1 SWE-bench	69.8%
Vals AI	GPT 5.1 TaxEval v2	74.9%
Vals AI	GPT 5.1 Terminal-Bench 2.0	44.9%
Vals AI	GPT 5.1 Vals Index	53.6%
Vals AI	GPT 5.1 Vals Multimodal Index	52.7%
Vals AI	GPT 5.1 Vibe Code Bench v1.1	24.6%

Not currently available through EU in-region routing. In-region routing docs

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OpenAI: GPT-5.1 (batch)

Providers

Pricing

GPT-5.1 (batch) — Price history

Performance

Uptime

Benchmarks

Apps

Activity

API

Frequently asked questions

Explore more models

More models from OpenAI

More models from OpenAI

OpenAI: GPT-5.1 (batch)

Providers

Pricing

GPT-5.1 (batch) — Price history

Performance

Uptime

Benchmarks

Apps

Activity

API

Frequently asked questions

What is GPT-5.1 (batch)?

How much does GPT-5.1 (batch) cost?

What is the context length of GPT-5.1 (batch)?

Does GPT-5.1 (batch) support tool calling and structured outputs?

What inputs and outputs does GPT-5.1 (batch) support?

Which providers serve GPT-5.1 (batch)?

What other text models does OpenAI have?

When was GPT-5.1 (batch) released?

Explore more models

More models from OpenAI

More models from OpenAI