Gemini 3 Flash vs Claude Haiku 4.5, cheapest Frontier Models

Gemini 3 FlashClaude Haiku 4.5
arenaElo12981274
humanEval79.478.2
sweBench4840.6
mmlu83.281.5
gpqa51.848
aime7660
Price in/out ($/M)$0.3 / $2.5$1 / $5

Our verdict

Both are sub-dollar, sub-second models. Gemini 3 Flash has a larger context (1M vs 200K) and native multimodal; Haiku 4.5 is slightly sharper on reasoning. For voice agents, Gemini. For high-volume chat UX, either works, pick your provider.

Gemini 3 Flash · Claude Haiku 4.5 · All AI model comparisons