Question 1

Which AI model is best in 2026?

Accepted Answer

There is no single best model. Claude Sonnet 4.6 leads agentic coding; GPT-5 leads reasoning; Gemini 2.5 Pro leads long context; DeepSeek R1 leads price-to-quality; Grok 4 leads X/Twitter analysis. Pick by use case using Check.AI.

Question 2

How often is Check.AI data updated?

Accepted Answer

Model and pricing data is reviewed weekly against official provider docs and the public models.dev dataset. Major price changes are typically reflected within 48 hours.

Question 3

Is GPT-5 cheaper than Claude?

Accepted Answer

GPT-5 is roughly $2.50 input / $10 output per 1M tokens. Claude Sonnet 4.6 is roughly $3 / $15. GPT-5 is about 30-40% cheaper per token at frontier quality.

Question 4

Where does Check.AI get its data?

Accepted Answer

Pricing and model specs come from official provider documentation and the open models.dev dataset. Benchmark numbers come from LMArena, SWE-bench, MMLU and provider-published evals. Editorial verdicts are written by Check.AI.

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