Is Step 3.5 Flash a good deal?

Whether anything in this catalogue beats Step 3.5 Flash on both quality and price, and what you give up if it does. A computation on the current catalogue, not an opinion.

12 undominated of 145 · Oct 6, 2026

As of Oct 6, 2026, Step 3.5 Flash is dominated for Balanced on LMArena. Gemma 4 26B A4B scores 30.9 higher and costs 16% less, with a covering envelope. 12 of 145 rated, priced standard models are undominated.

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Current model

Step 3.5 Flash

Balanced

3 tokens in per 1 out

Gemma 4 26B A4B is both better and cheaper than Step 3.5 Flash: 30.9 points higher on LMArena and 16% less per million tokens, $0.023 cheaper at this mix.

Step 3.5 Flash

LMArena Elo · higher is better

Scale starts at 1040 Elo

1403.0

Effective $/M · Balanced · lower is better

$0.150/M

Gemma 4 26B A4B

LMArena Elo · higher is better

Scale starts at 1040 Elo

1433.9

Effective $/M · Balanced · lower is better

$0.127/M

Step 3.5 Flash takes text, returns up to 65,536 tokens from a 262,144-token context, and is listed by 1 seller.

Compared against 145 rated, priced models on this lens: 2 models dominate it and give up nothing, none does so with a trade-off. Step 3.5 Flash scores 1403 at $0.150 per million tokens for this mix.

Envelope-safe replacements

Each row scores at least as high, costs no more, and covers this model’s context, output, modalities, tools, and reasoning. A cheaper narrower model is not listed here.

ModelLMArenaEffective $/MYou save
Gemma 4 26B A4B 1433.9 +30.9$0.127/M16%
DeepSeek V4 Flash 04231432.1 +29.1$0.113/M25%
Gemma 4 26B A4B 1433.9 · $0.127/MStep 3.5 Flash1403.0 · $0.150/MLMArena EloEffective $/M · Balanced
145 rated, priced standard models. Chartreuse is the frontier. Cobalt is the model you named, when it is not on the staircase.

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