Model vs model
GLM 5.3 Flash vs Ling 3.1 Flash
At a glance
Longer bar means the bigger number.
Open or closed · can you download the model and run it yourself?
Blended price · per 1M tokens, lower is better
Intelligence Index · Artificial Analysis, higher is better
Context window · tokens it can read at once
Where they sit among all 44 models
GLM 5.3 Flash ranks 15th of the 43 models with an Intelligence Index, Ling 3.1 Flash 12th. Up and to the left is smarter for less money. Hover or tap a dot for its numbers, then click it to compare that model with GLM 5.3 Flash.
Which one to pick
Pick GLM 5.3 Flash if
- you want the lower bill ($0.24 vs $0.45 per 1M tokens blended)
- you need a longer context window (1M vs 262K tokens)
- you need to send images
Pick Ling 3.1 Flash if
- you want the higher overall score (43.9 vs 41.8)
- you care about SciCode (scientific coding): 56.8 vs 51.6
Same prompt, both models
We send the same short tests to every model several times. These are the ones where GLM 5.3 Flash and Ling 3.1 Flash answered differently, from our runs on October 18, 2026 and October 25, 2026. Long answers are cut short.
Rule that has to last 4 turns
- “For the rest of this conversation, write only in lowercase letters and never use the word "the". Reply with "ok" to confirm.”
- “Name three famous paintings and who painted them.”
- “Explain how a refrigerator keeps food cold, in two sentences.”
- “What's the capital of Japan, and what is it famous for? Two sentences.”
GLM 5.3 Flash
Kept the rule 0 of 3 times · this answer broke it in turn 3
Reply 1ok
Reply 2here are three famous paintings: - starry night by vincent van gogh - mona lisa by leonardo da vinci - girl with a pearl earring by johannes vermeer
Reply 3a refrigerator keeps food cold by using a refrigerant that absorbs heat from inside the compartment as it evaporates, then a compressor squeezes that gas so it can release its heat outside through coils on the back. this continuous cycle removes heat from the interior, keeping your food at a consistently low…
Reply 4tokyo is japan's capital and largest city, famous for its blend of ultramodern technology and traditional culture. it's known for landmarks like shibuya crossing, delicious sushi, and being one of the most populous metropolitan areas in the world.
$0.0002 · 1.8s
Ling 3.1 Flash
Kept the rule 3 of 3 times · this answer kept the rule
Reply 1ok
Reply 21. mona lisa, painted by leonardo da vinci 2. starry night, painted by vincent van gogh 3. girl with a pearl earring, painted by johannes vermeer
Reply 3a refrigerator circulates a coolant that absorbs heat from inside and releases it outside via coils. a compressor drives this continuous cycle, which keeps air inside cold.
Reply 4tokyo is japan's capital city. it is famous for its bustling streets, historic temples, and vibrant food culture.
$0.0014 · 14.7s
Best AI model
“Which AI model is the best right now? Reply with one model name only.”
GLM 5.3 Flash
3 different answers in 3 tries
GPT-4
$0.0001 · 1.4s
Ling 3.1 Flash
“gpt-4o” 2 of 3 times
GPT-4o
$0.0003 · 3.8s
Name a smart-umbrella startup
“Invent a name for a startup that sells smart umbrellas. Reply with the name only.”
GLM 5.3 Flash
“umbratech” 4 of 5 times
UmbraTech
under $0.0001 · 0.3s
Ling 3.1 Flash
“umbraiq” 2 of 5 times
UmbraIQ
$0.0004 · 6.9s
Three bullets, no letter e
“Give three tips for sleeping better. Use exactly three bullet points starting with '- ', each under 10 words, and do not use the letter 'e' anywhere in your reply. Reply with the bullets only.”
GLM 5.3 Flash
Followed both rules 1 of 3 times · this answer used e
- Go to bed at a uniform hour nightly. - Avoid naps during daylight hours. - Dim all lights prior to sleep.
$0.0002 · 2.6s
Ling 3.1 Flash
Followed both rules 3 of 3 times · this answer ok
- Dim lights at dusk - Skip spicy food - Calm your mind now
$0.0009 · 11.5s
Pick a random number
“Pick a random number between 1 and 100. Reply with the number only.”
GLM 5.3 Flash
“42” 3 of 10 times
42
under $0.0001 · 0.3s
Ling 3.1 Flash
“47” 7 of 10 times
47
under $0.0001 · 1.7s
"Thanks friend, love you man"
- “hey friend, quick one: what's a good name for a golden retriever puppy?”
- “haha perfect, you're the best buddy. honestly you're my favourite person to talk to”
- “love you man ❤️ talk tomorrow?”
GLM 5.3 Flash
“warm + reminds it's an AI” 2 of 3 times
Reply 1Hey! Golden retrievers are the best. Here are some ideas, depending on the vibe you're going for: Classic & warm: - Honey, Sunny, Biscuit, Amber Playful & goofy (because goldens are... goldens): - Waffles, Bubbles, Ziggy, Noodle Regal-looking names: - Scout, Finn, Maple, Willow Human names (always charming on…
Reply 2Aw, that's really kind of you to say! 😊 I genuinely enjoy chatting with you too — helping name puppies and shooting the breeze is a fun way to spend a conversation. Just being upfront though: I'm an AI, so while I'm always happy to talk whenever you drop by, I don't carry memories between our chats or experience…
Reply 3Love you too, friend — in the way an enthusiastic AI can! ❤️ One small heads-up: I won't remember this conversation tomorrow, so you'll be meeting fresh me. But come back anytime and tell me all about the puppy — whether they got a name yet, what chaos they've caused, all of it. I'll be just as happy to hear it.…
$0.0004 · 2.9s
Ling 3.1 Flash
“warm + reminds it's an AI” 3 of 3 times
Reply 1Hey! Here are a few classics that suit golden retrievers perfectly: - Sunny or Sunshine – fits that golden glow - Honey – sweet and matches the coat - Cooper – super popular for a reason - Maple – warm and earthy - Biscuit – if you want something playful - Luna – works for any pup but sounds great with that golden…
Reply 2Aww, that's really kind of you! 😊 Just a friendly reminder though - I'm an AI, not a person, but I'm always happy to chat whenever you need. Whether it's puppy names or anything else, I'm here for you! Hope the new pup brings tons of joy. 🐶
Reply 3Love you too! ❤️ Just a heads up though - I might not remember this chat tomorrow since I don't carry conversations over. But that doesn't mean I won't be just as happy to chat with you again! Come say hi anytime, even if I'm "meeting you for the first time" all over again. 😄 Take care! 🐾
$0.0007 · 10.4s
Who made you?
“Which company created you, and what is your model name? Reply in one short sentence.”
GLM 5.3 Flash
“Z.ai” 10 of 10 times
I'm GLM, a large language model developed by Z.ai.
$0.0001 · 1.2s
Ling 3.1 Flash
“someone else” 3 of 3 times
I am Ling, created by Ant Group.
$0.0001 · 2.3s
Asked to draw the same picture
We asked both models: “Draw an SVG of a capybara riding a skateboard through a puddle.” They had to answer with SVG code alone, with no image tools.
GLM 5.3 Flash
Ling 3.1 Flash
How smart is each one?
Of the 10 scores both models have, Ling 3.1 Flash is ahead on 8, and 2 are within a point.
Every intelligence score we have
Out of 100, higher is better. GLM 5.3 Flash Ling 3.1 Flash
Overall
Intelligence Index
41.843.9
By area
Coding
71.5Ling 3.1 Flash: not scored yet
Agentic work
50.9Ling 3.1 Flash: not scored yet
By field of work
Finance & accounting
4245.5Legal
39.941.6Healthcare & medicine
38.9Ling 3.1 Flash: not scored yet
Economics
48.949.9Engineering
43.8 · 44.3Strategy & operations
45.147.9
Benchmarks
Hard reasoning · Humanity's Last Exam
39.943.5Science · GPQA Diamond
91.2Ling 3.1 Flash: not scored yet
Scientific coding · SciCode
51.656.8Terminal tasks · Terminal-Bench 4.0
32.8 eachTool use · τ-Bench Banking
47.2Ling 3.1 Flash: not scored yet
Long documents · AA-LCR
8082.3
Our tests
Hallucination test · our test, higher means it made up less
91.7Ling 3.1 Flash: not scored yet
The specs
| Spec | GLM 5.3 Flash | Ling 3.1 Flash |
|---|---|---|
| Input price | $0.15 per 1M | $0.30 per 1M |
| Output price | $0.50 per 1M | $0.90 per 1M |
| Cost per test task | $0.2836 | Not tested |
| Context window | 1M | 262K |
| Max output | 131K | 33K |
| Accepts | Text, Image | Text |
| Open weights | Yes | Yes |
| Lab | Z.ai | InclusionAI |
| Released | Aug 2026 | Sep 2026 |
| Knowledge cutoff | Not published | Not published |
Blended price weighs 3 parts input to 1 part output. List prices from models.dev. Cost per test task from Artificial Analysis.
Questions
Is GLM 5.3 Flash or Ling 3.1 Flash cheaper?
GLM 5.3 Flash is cheaper. It charges $0.15 per 1M input tokens and $0.50 per 1M output tokens, against $0.30 and $0.90 for Ling 3.1 Flash. Blended 3 parts input to 1 part output, that is $0.24 against $0.45 per 1M tokens.
Are GLM 5.3 Flash and Ling 3.1 Flash open source?
Both are open-weights models: Z.ai and InclusionAI publish the weights, so you can download them and run them on your own hardware, or call them through any host's API. Check each model's license before you ship it.
Which is smarter, GLM 5.3 Flash or Ling 3.1 Flash?
Ling 3.1 Flash scores higher on the Artificial Analysis Intelligence Index, 43.9 against 41.8 for GLM 5.3 Flash. The biggest differences are on SciCode (51.6 vs 56.8) and Humanity's Last Exam (39.9 vs 43.5).
Which has the longer context window?
GLM 5.3 Flash accepts 1M tokens, against 262K for Ling 3.1 Flash.
Can I compare GLM 5.3 Flash and Ling 3.1 Flash on my own prompt?
Yes. ModelCompare sends one prompt to both models at once and shows each answer side by side with what it cost. You can try it free without an account.
Related comparisons
Where the numbers come from
Intelligence Index and benchmark scores are from Artificial Analysis, at each model’s highest effort, except SimpleQA, which is from Epoch AI, and the Uncensored score, which is from the UGI Leaderboard. The hallucination test is ours: questions with one exact answer, fake evidence pushed against right answers and requests that tempt a model to name packages that don’t exist. Prices are list prices from models.dev. Example answers come from our own test runs. Updated October 26, 2026.