Compare AI models

Specifications
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one.
—74B
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.
$3.00—
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.
$15.00—
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.
$0.30—
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.
$3.00Amazon Bedrock—
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$15.00Amazon Bedrock—
$1,350Anthropic list price—
Benchmarks
MCP AtlasMulti-step tool use — Can the AI chain together many tools and steps to complete one bigger task, rather than doing just a single thing? Higher is better.
69.5%52.2%
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better.
89.9%86.43%
Overview
CompanyAnthropicNVIDIA
Release dateFeb 17 2026Oct 15 2026
AccessClosedOpen Weight
Model detailsView modelView model

Frequently asked questions

Claude Sonnet 4.6 leads Nemotron 3.5 Bolt 74B on 2 of the 2 benchmarks they both report (MCP Atlas, GPQA Diamond). Only Claude Sonnet 4.6 has a verified first-party API price: $3.00 per million input tokens and $15.00 per million output tokens. No pay-as-you-go API rate is tracked for Nemotron 3.5 Bolt 74B. Claude Sonnet 4.6 shipped 240 days before Nemotron 3.5 Bolt 74B, so benchmark comparisons should account for the intervening progress.

Claude Sonnet 4.6 is closed, while Nemotron 3.5 Bolt 74B is open weight.

On MCP Atlas, Claude Sonnet 4.6 leads at 69.5% vs Nemotron 3.5 Bolt 74B at 52.2%. On GPQA Diamond, Claude Sonnet 4.6 leads at 89.9% vs Nemotron 3.5 Bolt 74B at 86.43%.