Compare AI models

Specifications
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.
200k1M
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.
$1.00$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.
$5.00$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.
$0.10$0.10
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.
$1.00Amazon Bedrock$1.00Google AI Studio
Cheapest outputLowest output rate across every provider on OpenRouter, the lab included. May come from a different provider than the cheapest input.
$5.00Amazon Bedrock$5.00Google AI Studio
$450Anthropic list price$900Google list price
Benchmarks
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better.
77%66%
Terminal-Bench 4.0Agentic terminal coding — Can the AI work in a command-line terminal — running commands and finishing technical setup tasks the way a developer would? Version 4.0 recalibrated how much time, CPU and memory each task gets, removed eight tasks and fixed nineteen, so fewer runs fail for reasons that have nothing to do with the model. Scores are not comparable with earlier versions. Higher is better.
0%57.4%
Terminal-Bench-Science 0.1Agentic scientific computing — The same command-line setup as Terminal-Bench, pointed at scientific work: the AI has to drive research tooling and computational workflows through to a result, rather than administer a machine. Version 0.1 is the first release of the task set, and scores run lower than on the general board. Higher is better.
0.1%57.6%
Chartography · no toolsChart tasks — The same chart-centred test with no tools: the AI has to read each chart unaided. Scores run far lower than the with-tools version, so read the two as separate tests. Higher is better.
6.4%71.6%
Overview
CompanyAnthropicGoogle
Release dateOct 15 2025Sep 30 2026
AccessClosedClosed
Model detailsView modelView model

Frequently asked questions

Gemini 4 Argon leads Claude Haiku 4.5 on 3 of the 4 benchmarks they both report (BullshitBench v2, Terminal-Bench 4.0, Terminal-Bench-Science 0.1, Chartography). Claude Haiku 4.5 is cheaper on both input and output: $1.00 vs $2.00 per million input tokens, and $5.00 vs $10.00 per million output tokens. Claude Haiku 4.5 shipped 350 days before Gemini 4 Argon, so benchmark comparisons should account for the intervening progress.

Context windows are 200k (Claude Haiku 4.5) vs 1M (Gemini 4 Argon).

On BullshitBench v2, Claude Haiku 4.5 leads at 77% vs Gemini 4 Argon at 66%. On Terminal-Bench 4.0, Gemini 4 Argon leads at 57.4% vs Claude Haiku 4.5 at 0%. On Terminal-Bench-Science 0.1, Gemini 4 Argon leads at 57.6% vs Claude Haiku 4.5 at 0.1%. On Chartography · no tools, Gemini 4 Argon leads at 71.6% vs Claude Haiku 4.5 at 6.4%.