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Gemini 3.1 Flash Lite vs Qwen3.5 27B

Close to a tie overall. Gemini 3.1 Flash Lite costs 33% less for the same work.

Gemini 3.1 Flash Lite

by Google · #46 of 67 overall

Coming soon · price at launch
Context
1M
Input / 1M
$0.25
Output / 1M
$1.50

Qwen3.5 27B

by Qwen · #45 of 67 overall

Coming soon · price at launch
Context
256K
Input / 1M
$0.26
Output / 1M
$2.60

Better overall

About even

Grade 54.4 vs 54.6

Cheaper

Gemini 3.1 Flash Lite

33% less, $0.56 vs $0.84 blended

Larger context

Gemini 3.1 Flash Lite

1M vs 256K 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
Gemini 3.1 Flash LiteGemini 3.1 Flash Lite: 1,433
LMArena WebDevElo-style rating · LMArena (CC BY 4.0) · Oct 13, 2026
Gemini 3.1 Flash LiteGemini 3.1 Flash Lite: 1,256
LMArena CodingElo-style rating · LMArena (CC BY 4.0) · Oct 15, 2026
Gemini 3.1 Flash LiteGemini 3.1 Flash Lite: 1,458
SWE-bench Verified% of issues resolved · SWE-bench · Feb 24, 2026 · reference
Gemini 3.1 Flash LiteGemini 3.1 Flash Lite: —
Terminal-Bench 2.0% of tasks passed · Terminal-Bench · Feb 24, 2026 · reference
Gemini 3.1 Flash LiteGemini 3.1 Flash Lite: —
LiveCodeBenchpass@1, % · LiveCodeBench · Feb 24, 2026 · reference
Gemini 3.1 Flash LiteGemini 3.1 Flash Lite: —

Gemini 3.1 Flash LiteQwen3.5 27Bv = 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.

Gemini 3.1 Flash Lite$110 /month
Qwen3.5 27B$156 /month

Gemini 3.1 Flash Lite saves you $46.00 a month at this usage, $552 a year.

At a glance

AttributeGemini 3.1 Flash LiteQwen3.5 27B
Made byGoogleQwen
AvailabilityComing soonComing soon
Overall gradeGood · 54.4Good · 54.6
Overall rank#46 of 67#45 of 67
Input price$0.25 per 1M$0.26 per 1M
Output price$1.50 per 1M$2.60 per 1M
Context window1,000,000 tokens262,144 tokens
Reasoning levelsYesYes
Reads imagesYesYes
Model IDgemini-3.1-flash-liteqwen3.5-27b

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": "gemini-3.1-flash-lite", "messages": [...]}'

# …then swap one word
  -d '{"model": "qwen3.5-27b", "messages": [...]}'

Questions

Is Gemini 3.1 Flash Lite or Qwen3.5 27B better?

They grade within two points of each other (54.4 and 54.6), so pick on price and the benchmarks that match your work.

Which is cheaper, Gemini 3.1 Flash Lite or Qwen3.5 27B?

Gemini 3.1 Flash Lite: $0.25 in and $1.50 out per million tokens, against $0.26 and $2.60 through FullsendAI.

Which has the larger context window?

Gemini 3.1 Flash Lite, with 1,000,000 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), SWE-bench, Terminal-Bench, LiveCodeBench, and model makers’ published results where marked v. Prices are FullsendAI’s, per million tokens. Data as of Oct 28, 2026.