Skip to content
VECTOR WIREAI INTELLIGENCE
⌘K
UTC
Models739Deals30d256Policy30d64, 14 pendingSources1,010

Gemini 3.5 Flash vs Grok 4.3

Google · released

Wins 5 of 8 areas

Coding · Agents · Reasoning · Images and charts · Math

SpaceXAI · released

Wins 0 of 8 areas

—

Gemini 3.5 Flash is the stronger all-rounder.Grok 4.3 is cheaper.

Scores updated · 31 tests both models report · How we compare

Where each one wins

Tests won in each of the eight areas we test. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.

Math and long documents rest on a single test each.

What it costs

Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.

Gemini 3.5 Flash$1.50 to read · $9.00 to write$11Price from Google's own price page
Grok 4.3$1.25 to read · $2.50 to write$3.75Price from Artificial Analysis

Grok 4.3 costs 64% less for the same work.

The biggest differences

The tests each model wins by the widest margin, up to three each. Scores are out of 100.

Where Gemini 3.5 Flash pulls ahead

  • Command-line tasks in a real terminalTerminal-Bench 2.1+39points aheadGemini 3.5 Flash78.7Grok 4.339.7
  • Fixes real GitHub issues, working as an agentLiveBench · Agentic Coding+30.5points aheadGemini 3.5 Flash49Grok 4.318.5
  • Long professional tasks in banking, consulting and lawAA ApexAgents+30.1points aheadGemini 3.5 Flash47.1Grok 4.317

Where Grok 4.3 pulls ahead

  • Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+36.4points aheadGrok 4.374.2Gemini 3.5 Flash37.8
  • Follows unfamiliar, precisely checkable instructionsIFBench+5points aheadGrok 4.381.3Gemini 3.5 Flash76.3

Every test, side by side

All 31 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingGemini 3.5 Flash

Full coding ranking

AgentsGemini 3.5 Flash

Full agents ranking

ReasoningGemini 3.5 Flash

Full reasoning ranking

FactsEven

Full facts ranking

Images and chartsGemini 3.5 Flash

Full images and charts ranking

MathGemini 3.5 Flash

Full math ranking

Long documentsEven

Full long documents ranking

Following instructionsEven

Full following instructions ranking

Other results8 tests, not counted

Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.

Questions people ask

Which is better, Gemini 3.5 Flash or Grok 4.3?

Gemini 3.5 Flash wins five of the eight areas we test: coding, agents, reasoning, images and charts and math. Grok 4.3 wins none, but costs 64% less. They are level on facts, long documents and following instructions.

Which is better for coding?

Gemini 3.5 Flash. It wins 6 of the 6 coding tests both models report; Grok 4.3 wins none.

Which is cheaper?

Gemini 3.5 Flash costs $1.50 per million input tokens and $9.00 per million output tokens; Grok 4.3 costs $1.25 and $2.50. That makes Grok 4.3 about 64% cheaper for the same work.

How do you compare the two?

We use the 31 benchmark tests both models have published scores on. The verdict counts the 23 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 8 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.

Compare Gemini 3.5 Flash with

Google

Across the field

All comparisons