Grok 4.5 was trained on datasets spanning knowledge in coding, science, engineering, and math. With both intelligent and efficient reasoning, Grok 4.5 excels at real engineering tasks and exceeds comparable leading models at these tasks.
grok-4.5 vs laguna-s-2.1-free
Context lengths are 1,000,000 tokens on grok-4.5 and 262,144 tokens on laguna-s-2.1-free.
Laguna S 2.1 is the latest coding agent model from Poolside, featuring an impressive context length of 262,144 tokens. This model is built with 118B total parameters and 8B active parameters, balancing efficiency with high performance. It delivers strong capabilities for developer tasks, scoring 70.2% on the Terminal-Bench 2.1 benchmark.
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
Activity Past 30 Days
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Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Throughput (tok/s)
TTFT (s)
Uptime (%)
Cost calculator
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Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
How large is each context window?
grok-4.5 accepts 1,000,000 and laguna-s-2.1-free accepts 262,144 input tokens.
What inputs and capabilities does each model support?
grok-4.5 accepts text and image input and supports thinking, tool calling, function calling, structured outputs and long context; laguna-s-2.1-free accepts text input and supports reasoning, tool calling and long context.
Can I call grok-4.5 and laguna-s-2.1-free with the same API key?
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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