What is Meta: Llama 3.1 8B Instruct's context window?

Meta: Llama 3.1 8B Instruct accepts up to 131,072 tokens in a single request, and can return up to 16,384 output tokens.

Is there a cheaper OpenRouter model than Meta: Llama 3.1 8B Instruct?

Yes. Free Models Router is free per 1M input tokens versus $0.020 for Meta: Llama 3.1 8B Instruct, with a 200,000 token context window.

Where does this Meta: Llama 3.1 8B Instruct price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Meta: Llama 3.1 8B Instruct pricing

Meta's latest class of model (Llama 3.1) launched with a variety of sizes & flavors. This 8B instruct-tuned version is fast and efficient. Meta: Llama 3.1 8B Instruct from OpenRouter costs $0.020 per 1M input tokens and $0.040 per 1M output tokens. Context window 131,072 tokens.

API id meta-llama/llama-3.1-8b-instruct · OpenRouter · source · updated 2026-11-10 · general-purpose

$0.020

Input / 1M tokens

$0.040

Output / 1M tokens

—

Cached input / 1M

131K

Context window

Meta: Llama 3.1 8B Instruct specifications

Provider: OpenRouter
API id: meta-llama/llama-3.1-8b-instruct
Model type: general-purpose
Context window: 131K tokens
Max output: 16K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-11-10

What Meta: Llama 3.1 8B Instruct costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0000
Document summary	50,000	2,000	$0.0011
1M tokens in, 200K out	1,000,000	200,000	$0.03

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Meta: Llama 3.1 8B Instruct price history

Recorded	Input /1M	Output /1M
2026-11-09	$0.020	$0.040
2026-10-29	$0.050	$0.080
2026-10-28	$0.020	$0.040
2026-08-27	$0.050	$0.080

Common questions

How much does Meta: Llama 3.1 8B Instruct cost per 1M tokens?: Meta: Llama 3.1 8B Instruct costs $0.020 per 1M input tokens and $0.040 per 1M output tokens on the standard tier.
What is Meta: Llama 3.1 8B Instruct's context window?: Meta: Llama 3.1 8B Instruct accepts up to 131,072 tokens in a single request, and can return up to 16,384 output tokens.
Is there a cheaper OpenRouter model than Meta: Llama 3.1 8B Instruct?: Yes. Free Models Router is free per 1M input tokens versus $0.020 for Meta: Llama 3.1 8B Instruct, with a 200,000 token context window.
Where does this Meta: Llama 3.1 8B Instruct price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

Compare Meta: Llama 3.1 8B Instruct with another model →

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