Gemini 3.8 Flash vs Gemini 4 Argon
Wins 1 of 6 areas
Long documents
Wins 5 of 6 areas
Coding · Agents · Reasoning · Facts · Math
Gemini 4 Argon is the stronger all-rounder.Gemini 3.8 Flash is cheaper and better at long documents.
Both rank among the ten best models we track in facts.
Scores updated · 27 tests both models report · How we compare
Where each one wins
Tests won in each of the six areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- ReasoningHard problems that need careful thinking04Gemini 4 Argon4 of 4 tests
- CodingWriting and fixing software02Gemini 4 Argon2 of 2 tests
- AgentsCarrying out multi-step tasks on its own02Gemini 4 Argon2 of 2 tests
- MathCompetition and research-level math02Gemini 4 Argon2 of 2 tests
- FactsGetting facts right instead of making them up12Gemini 4 Argon2 of 3 tests
- Long documentsFinding answers in very long texts10Gemini 3.8 Flash1 of 1 test
Long documents rests on a single test.
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 3.8 Flash costs 63% 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 4 Argon pulls ahead
- Extremely hard research-level math problemsFrontierMath Tier 4+56.1points ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+40.1points ahead
- Complex command-line tasks across many fieldsTerminal-Bench 4.0+37.4points ahead
Where Gemini 3.8 Flash pulls ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+4.7points ahead
- Reasons across sets of long documentsAA-LCR+1.6points ahead
Every test, side by side
All 27 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingGemini 4 Argon
- LMArena · WebDevGemini 4 Argon by 96 rating points15831679+96 rating
- SciCodeGemini 4 Argon by 5.256.661.8+5.2
AgentsGemini 4 Argon
- Terminal-Bench 4.0Gemini 4 Argon by 37.419.757.1+37.4
- GDPValGemini 4 Argon by 9.446.856.2+9.4
ReasoningGemini 4 Argon
- ARC-AGI-3Gemini 4 Argon by 35.910.446.3+35.9
- Humanity's Last ExamGemini 4 Argon by 9.347.857.1+9.3
- CritPtGemini 4 Argon by 8.818.327.1+8.8
- ARC-AGI-2Gemini 4 Argon by 2.189.291.3+2.1
FactsGemini 4 Argon
- AA-Omniscience · Non-hallucinationGemini 4 Argon by 40.144.884.9+40.1
- SimpleQA VerifiedGemini 4 Argon by 6.369.776+6.3
- AA-Omniscience · AccuracyGemini 3.8 Flash by 4.754.649.9+4.7
MathGemini 4 Argon
- FrontierMath Tier 4Gemini 4 Argon by 56.121.978+56.1
- FrontierMath Tiers 1-3 (v2)Gemini 4 Argon by 17.668.486+17.6
Other results13 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.
- Terminal-Bench 4.0Gemini 4 Argon by 38.319.157.4+38.3
- HiL-Bench (Tools-allowed)Gemini 4 Argon by 20.541.562+20.5
- AA-OmniscienceGemini 4 Argon by 12.829.642.4+12.8
- AA IntelligenceGemini 4 Argon by 11.740.952.6+11.7
- OSWorld 2.0Gemini 4 Argon by 10.25969.2+10.2
- HealthBench HardGemini 4 Argon by 7.238.245.4+7.2
- HealthBench Pro, with Search groundingGemini 4 Argon by 5.271.576.7+5.2
- LVBenchGemini 4 Argon by 4.687.191.7+4.6
- DeepSWE 1.1Gemini 4 Argon by 4.273.777.9+4.2
- HealthBench Pro, without Search groundingGemini 4 Argon by 3.465.468.8+3.4
- HealthBench Pro, without Search grounding (length-adjusted)Gemini 4 Argon by 2.853.756.5+2.8
- HealthBench Pro, with Search grounding (length-adjusted)Gemini 4 Argon by 2.758.761.4+2.7
- ARC-AGI-1tie98.598.5tie
Questions people ask
Which is better, Gemini 3.8 Flash or Gemini 4 Argon?
Gemini 4 Argon wins five of the six areas where both have results: coding, agents, reasoning, facts and math. Gemini 3.8 Flash wins long documents, and costs 63% less.
Which is better for coding?
Gemini 4 Argon. It wins 2 of the 2 coding tests both models report; Gemini 3.8 Flash wins none.
Which is cheaper?
Gemini 3.8 Flash costs $0.75 per million input tokens and $3.75 per million output tokens; Gemini 4 Argon costs $2.00 and $10.00. That makes Gemini 3.8 Flash about 63% cheaper for the same work.
How do you compare the two?
We use the 27 benchmark tests both models have published scores on. The verdict counts the 14 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 13 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.