Google · Language model

Gemini 4 Argon

Google's first Gemini 4 model, announced September 30 and generally available since October 13. It led Arena's text leaderboard until its sibling Gemini 4 Carbon arrived on October 28.

MakerGoogle
ReleasedSeptember 30, 2026
API price (per 1M tokens)$2 in / $10 out
Open weightsNo

Introductory price until Nov 30, 2026; $4 / $20 from Dec 1. Not on the free API tier.

Best for

  • Long, multi-step reasoning
  • Work where a wrong answer costs more than no answer
  • Gemini and Google Workspace users

Strengths

  • #2 on Arena's text leaderboard (1520), behind only Gemini 4 Carbon
  • Lowest hallucination rate of the frontier models in Artificial Analysis's testing
  • Introductory $2 / $10 pricing, with Batch at half that

Watch out for

  • Price doubles to $4 / $20 on December 1
  • Outside the Arena WebDev top five
  • Not available on free plans or the free API tier

Ranking history

EditionPower RankingsCodingBest ValueOpen-Weight WatchImage GenerationVideo Generation
Week 45, 2026#6 (91)#7 (87)#5 (88)———
Week 44, 2026#2 (95)#6 (88)#3 (92)———
Week 43, 2026#2 (95)#6 (88)#3 (92)———
Week 42, 2026#3 (94)#6 (88)————
Week 41, 2026#3 (94)#6 (88)————