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Gemma 3 4B IT vs Phi 4

Gemma 3 4B IT grades higher overall (21.5 against 15.5). Gemma 3 4B IT costs 29% less for the same work.

Gemma 3 4B IT

by Google · #64 of 67 overall

Coming soon · price at launch
Context
128K
Input / 1M
$0.050
Output / 1M
$0.10

Phi 4

by Microsoft · #66 of 67 overall

Coming soon · price at launch
Context
16K
Input / 1M
$0.070
Output / 1M
$0.14

Better overall

Gemma 3 4B IT

Grade 21.5 vs 15.5

Cheaper

Gemma 3 4B IT

29% less, $0.063 vs $0.087 blended

Larger context

Gemma 3 4B IT

128K vs 16K tokens

Head to head

Public benchmarks. Longer is better; each value links to its source.

LMArena TextElo-style rating · LMArena (CC BY 4.0) · Oct 15, 2026
LMArena CodingElo-style rating · LMArena (CC BY 4.0) · Oct 15, 2026

Gemma 3 4B ITPhi 4v = reported by the model’s maker. — = no public score yet. Arena bars span the range across every model we grade.

What it costs you

Drag to match your monthly usage.

Gemma 3 4B IT$14.00 /month
Phi 4$19.60 /month

Gemma 3 4B IT saves you $5.60 a month at this usage, $67.20 a year.

At a glance

AttributeGemma 3 4B ITPhi 4
Made byGoogleMicrosoft
AvailabilityComing soonComing soon
Overall gradeGood · 21.5Good · 15.5
Overall rank#64 of 67#66 of 67
Input price$0.050 per 1M$0.070 per 1M
Output price$0.10 per 1M$0.14 per 1M
Context window131,072 tokens16,384 tokens
Reasoning levelsNoNo
Reads imagesYesNo
Model IDgemma-3-4b-itphi-4

Try both with one key

Same endpoint, same key, both hosted in the USA. Change one word to switch models, in Claude Code, Cursor, Cline or your own code.

Get your API key
# Ask either model the same thing
curl https://fullsendai.com/v1/chat/completions \
  -H "Authorization: Bearer $FULLSEND_API_KEY" \
  -d '{"model": "gemma-3-4b-it", "messages": [...]}'

# …then swap one word
  -d '{"model": "phi-4", "messages": [...]}'

Questions

Is Gemma 3 4B IT or Phi 4 better?

Gemma 3 4B IT grades 21.5 against 15.5 for Phi 4, from public benchmarks.

Which is cheaper, Gemma 3 4B IT or Phi 4?

Gemma 3 4B IT: $0.050 in and $0.10 out per million tokens, against $0.070 and $0.14 through FullsendAI.

Which has the larger context window?

Gemma 3 4B IT, with 131,072 tokens.

Can I use both with one API key?

Yes, once they launch: both are coming soon, at the prices shown, and both will use the same FullsendAI key.

Model rankingsAll benchmarksCompare other models

Scores: LMArena (CC BY 4.0), and model makers’ published results where marked v. Prices are FullsendAI’s, per million tokens. Data as of Oct 28, 2026.