Grok 4.20 Beta by xAI — Pricing, Benchmarks & Real Outputs
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Compare Grok 4.20 Beta
Alternatives to Grok 4.20 Beta
Grok 4.20 Beta's competitors have been quietly putting in work.
Grok 4.20 Beta's competitors have been quietly putting in work.
Grok 4.20 Beta's competitors have been quietly putting in work.
Grok 4.20 Beta is xAI's newest flagship model with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherence, delivering consistently precise and truthful responses. Reasoning can be enabled/disabled using the reasoning enabled parameter in the API.
fromimport openai OpenAI
client = OpenAI(
"https://openrouter.ai/api/v1" base_url=,
"$OPENROUTER_API_KEY" api_key=,
)
response = client.chat.completions.create(
"x-ai/grok-4.20" model=,
"role""user""content""Hello!" messages=[{: , : }],
)
print(response.choices[0].message.content)Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.
The disciplined rebel. Precision-engineered defiance — follows your instructions to the letter while finding creative ways to make each response unmistakably Grok. Like a special ops agent who also happens to be funny.
Answers with surgical precision and zero fluff. Takes creative prompts seriously but delivers with military efficiency. Won't waste a single token hallucinating — but will absolutely waste one roasting you.
Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.
Unique words vs. total words. Higher = richer vocabulary.
Average words per sentence.
"Might", "perhaps", "arguably" per 100 words.
**Bold** markers per 1,000 characters.
Bullet and numbered list items per 1,000 characters.
Markdown headings per 1,000 characters.
Emoji per 1,000 characters.
"However", "moreover", "furthermore" per 100 words.
48 outputs · generated before accounting joined the chat
Grok 4.20 Beta is xAI's newest flagship model with industry-leading speed and agentic tool calling capabilities. It combines the lowest hallucination rate on the market with strict prompt adherence, delivering consistently precise and truthful responses. Reasoning can be enabled/disabled using the reasoning enabled parameter in the API.
fromimport openai OpenAI
client = OpenAI(
"https://openrouter.ai/api/v1" base_url=,
"$OPENROUTER_API_KEY" api_key=,
)
response = client.chat.completions.create(
"x-ai/grok-4.20" model=,
"role""user""content""Hello!" messages=[{: , : }],
)
print(response.choices[0].message.content)Set OPENROUTER_API_KEY with your OpenRouter API key from openrouter.ai/keys.
The disciplined rebel. Precision-engineered defiance — follows your instructions to the letter while finding creative ways to make each response unmistakably Grok. Like a special ops agent who also happens to be funny.
Answers with surgical precision and zero fluff. Takes creative prompts seriously but delivers with military efficiency. Won't waste a single token hallucinating — but will absolutely waste one roasting you.
Taste is judged on an uncapped scale, originality first. The space past 100 is craft today's models rarely reach.
Unique words vs. total words. Higher = richer vocabulary.
Average words per sentence.
"Might", "perhaps", "arguably" per 100 words.
**Bold** markers per 1,000 characters.
Bullet and numbered list items per 1,000 characters.
Markdown headings per 1,000 characters.
Emoji per 1,000 characters.
"However", "moreover", "furthermore" per 100 words.
48 outputs · generated before accounting joined the chat