Kimi K3 vs Gemini 3.8 Flash: scores, price and which to pick

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Our take

Gemini 3.8 Flash wins 3 of 4 categories and costs less: 4.0× cheaper for everyday text work. Easy pick.

Overall6571Best

Coding74Best66

Writing6980Best

Support7378Best

Value5266Best

Input / 1M$3.00$0.75Best

Output / 1M$15.00$3.75Best

Blended / 1M$6.00$1.50Best

Context window1M1M

Open weightsYesNo

Released16 Jul 20262 Sept 2026

Your monthly bill

Tasks per month50k

Kimi K3$1.2k

Gemini 3.8 Flash$300Cheapest

List prices, a quarter of the tokens as output. Scores are provisional, from Arena and Epoch AI.