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DeepSeek V3.1 vs GLM 4.7

DeepSeek V3.1 grades higher overall (68.7 against 66.3). DeepSeek V3.1 costs 42% less for the same work.

DeepSeek V3.1

by DeepSeek · #31 of 67 overall

Coming soon · price at launch
Context
160K
Input / 1M
$0.25
Output / 1M
$0.95

GLM 4.7

by Z.ai · #34 of 67 overall

Coming soon · price at launch
Context
198K
Input / 1M
$0.40
Output / 1M
$1.75

Better overall

DeepSeek V3.1

Grade 68.7 vs 66.3

Cheaper

DeepSeek V3.1

42% less, $0.42 vs $0.74 blended

Larger context

GLM 4.7

160K vs 198K tokens

SWE-bench Verified

GLM 4.7

66% vs 73.8%

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 WebDevElo-style rating · LMArena (CC BY 4.0) · Oct 13, 2026
DeepSeek V3.1DeepSeek V3.1: —
LMArena CodingElo-style rating · LMArena (CC BY 4.0) · Oct 15, 2026
Aider Polyglot% of exercises solved · Aider (aider.chat) · Aug 21, 2025
GLM 4.7GLM 4.7: —
SWE-bench Verified% of issues resolved · SWE-bench · Dec 22, 2025 · reference
Terminal-Bench 2.0% of tasks passed · Terminal-Bench · Dec 22, 2025 · reference
DeepSeek V3.1DeepSeek V3.1: —
LiveCodeBenchpass@1, % · LiveCodeBench · Dec 22, 2025 · reference

DeepSeek V3.1GLM 4.7v = 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.

DeepSeek V3.1$88.00 /month
GLM 4.7$150 /month

DeepSeek V3.1 saves you $62.00 a month at this usage, $744 a year.

At a glance

AttributeDeepSeek V3.1GLM 4.7
Made byDeepSeekZ.ai
AvailabilityComing soonComing soon
Overall gradeStrong · 68.7Strong · 66.3
Overall rank#31 of 67#34 of 67
Input price$0.25 per 1M$0.40 per 1M
Output price$0.95 per 1M$1.75 per 1M
Context window163,840 tokens202,752 tokens
Reasoning levelsYesNo
Reads imagesNoNo
Model IDdeepseek-v3.1glm-4.7

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": "deepseek-v3.1", "messages": [...]}'

# …then swap one word
  -d '{"model": "glm-4.7", "messages": [...]}'

Questions

Is DeepSeek V3.1 or GLM 4.7 better?

DeepSeek V3.1 grades 68.7 against 66.3 for GLM 4.7, from public benchmarks.

Which is cheaper, DeepSeek V3.1 or GLM 4.7?

DeepSeek V3.1: $0.25 in and $0.95 out per million tokens, against $0.40 and $1.75 through FullsendAI.

Which has the larger context window?

GLM 4.7, with 202,752 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), Aider (aider.chat), 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.