Compare AI models

Specifications
ParametersThe learned values that shape how a model responds. B means billion and T means trillion. For mixture-of-experts models, the total count is larger than the number active for each token. Parameter count alone does not measure quality.
—7B/13B/33B/65B
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider.
1M2k
API pricingUSD per 1M tokens · lower wins
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
$2.00—
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
$10.00—
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again.
$0.20—
Cheapest inputLowest input rate across every provider on OpenRouter, the lab included. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page.
$2.00Amazon Bedrock—
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$10.00Amazon Bedrock—
$900Anthropic list price—
These models have no shared benchmark scores.
Overview
CompanyAnthropicMeta
Release dateJun 30 2026Feb 24 2023
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Claude Sonnet 5 and LLaMA 1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only Claude Sonnet 5 has a verified first-party API price: $2.00 per million input tokens and $10.00 per million output tokens. No pay-as-you-go API rate is tracked for LLaMA 1. LLaMA 1 shipped 1222 days before Claude Sonnet 5, so benchmark comparisons should account for the intervening progress.

Context windows are 1M (Claude Sonnet 5) vs 2k (LLaMA 1). Claude Sonnet 5 is closed, while LLaMA 1 is open weight.

Direct benchmark comparisons are unavailable — Claude Sonnet 5 and LLaMA 1 don't publish scores on any of the same benchmarks.