Grok Code Fast 1
Nothing here. The model returned empty. We stared at it for a while.
Grok Code Fast 1 vs Gemini 2.5 Pro (I/O Edition)
Compare Grok Code Fast 1 by xAI against Gemini 2.5 Pro (I/O Edition) by Google AI, in 5 community votes, grok code fast 1 wins 100% of head-to-head duels, tested across 35 shared challenges. Updated April 2026.
Which is better, Grok Code Fast 1 or Gemini 2.5 Pro (I/O Edition)?
Grok Code Fast 1 is the better choice overall, winning 100% of 5 blind community votes on Rival. Grok Code Fast 1 costs $0.2/M input tokens vs $1.25/M for Gemini 2.5 Pro (I/O Edition). Compare their real outputs side by side below.
Key Differences Between Grok Code Fast 1 and Gemini 2.5 Pro (I/O Edition)
Grok Code Fast 1 is made by xai while Gemini 2.5 Pro (I/O Edition) is from google. On pricing, Grok Code Fast 1 costs $0.2/M input tokens vs $1.25/M for Gemini 2.5 Pro (I/O Edition). In community voting, In 5 community votes, Grok Code Fast 1 wins 100% of head-to-head duels.
In 5 community votes, Grok Code Fast 1 wins 100% of head-to-head duels. Grok Code Fast 1 leads in Web Design. Based on blind community voting from the Rival open dataset of 5+ human preference judgments for this pair.
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Grok Code Fast 1vsGemini 2.5 Pro (I/O Edition)
35 fights queued
Why Grok Code Fast 1?
6.6x cheaper overall$0.20/M in · $1.50/M out
4 months newerAug 2025
Why Gemini 2.5 Pro (I/O Edition)?
Dead even. This one's a coin flip.
Grok Code Fast 1Gemini 2.5 Pro (I/O Edition)
Input price
$0.20/M
$1.25/M
Output price
$1.50/M
$10.00/M
Context
256K
—
Released
Aug 2025
May 2025
Favorites
Grok Code Fast 1Gemini 2.5 Pro (I/O Edition)
12 / 35
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
2 / 35
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
3 / 35
Math Misconception Testreasoning
Tests an AI's understanding of number representation
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
4 / 35
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
5 / 35
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
6 / 35
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
Sponsored
7 / 35
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
8 / 35
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
9 / 35
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
10 / 35
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
Vote
11 / 35
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
Gemini 2.5 Pro (I/O Edition)
Nothing here. The model returned empty. We stared at it for a while.
Vote
12 / 35
Mario Level UI Recreationweb design
Recreate an interactive, classic Mario level in a single HTML file.
Vote
This matchup has more rounds
23+ more head-to-head results. Free. Not a trick.
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Our Verdict
Grok Code Fast 1Winner
Gemini 2.5 Pro (I/O Edition)Runner-up
Pick Grok Code Fast 1. In 5 blind votes, Grok Code Fast 1 wins 100% of the time. That's not luck.
Grok Code Fast 1 particularly excels in Web Design. Grok Code Fast 1 is 6.7x cheaper per token — worth considering if cost matters.
Clear winner
Writing DNA
Style Comparison
Similarity
96%
Grok Code Fast 1 uses 6.0x more emoji
Grok Code Fast 1
Gemini 2.5 Pro (I/O Edition)
60%Vocabulary58%
17wSentence Length16w
0.97Hedging0.38
2.8Bold5.8
2.5Lists5.0
0.06Emoji0.00
0.89Headings0.63
0.11Transitions0.01
Based on 23 + 16 text responses
vsAsk them anything yourself
Some models write identically. You are paying for the brand.
178 models fingerprinted across 32 writing dimensions. Free research.
Model Similarity Index
185x
price gap between models that write identically
178
models
12
clone pairs
32
dimensions
Devstral M / S
95.7%
Qwen3 Coder / Flash
95.6%
GPT-5.4 / Mini
93.3%
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ
Common questions
