Head to head · tested 27 Oct 2026

GLM 5.3 Flash vs Inkling Small: accuracy, speed and price

Similar accuracy; GLM 5.3 Flash costs less per question.

Z.aiGLM 5.3 Flash67.5% score · #28$0.00015 per question83 tok/s

Thinking MachinesInkling Small67.5% score · #28$0.00047 per question233 tok/s

Verdict

Built from the measurements below

Accuracy is too close to call: GLM 5.3 Flash scored 67.5% and Inkling Small 67.5% on the same 80 questions, a gap within what chance alone could produce.
GLM 5.3 Flash is 3.2× cheaper per question as billed ($0.00015 vs $0.00047), reasoning tokens included.
Inkling Small generates text 2.8× faster: 233 tokens per second against 83.
GLM 5.3 Flash accepts more context: 1M tokens against 524k.

Which should you choose?

Choose GLM 5.3 Flash for the lower cost per correct answer ($0.00022 against $0.00069), a 1M-token context window and more hosts to choose from on OpenRouter (34 against 1). Choose Inkling Small for faster streaming and shorter outputs (about 273 tokens per question against 560). The widest subject gap is in engineering: GLM 5.3 Flash answered 8 of 15 correctly, Inkling Small 6 of 15. With so few questions per subject, treat this as a lead to test on your own prompts, not a result.

Accuracy gap +0.0 points (z = 0.00). We call a winner only when z is at least 1.96, the usual 95% threshold. Speed, latency and price need a 10% margin.

Head to head

Same questions, same prompt, same API

Measure	GLM 5.3 Flash	Inkling Small	Edge
Verification scoreHigher is better	67.5%	67.5%	Too close to call
Cost per questionLower is better	$0.00015	$0.00047	GLM 5.3 Flash
Output speedHigher is better	83	233	Inkling Small
Time to first tokenLower is better	0.5 s	0.5 s	Similar
End-to-end response timeLower is better	7.4 s	3.6 s	Inkling Small
Tokens per questionLower is better	560	273	Inkling Small
Context windowHigher is better	1M	524k	GLM 5.3 Flash

Side by side

Bars are scaled to the larger of the two values. The winner on each measure is marked in bold.

Every measure

GLM 5.3 Flash first, Inkling Small second

Verification scorehigher is better

GLM 5.3 Flash67.5%

Inkling Small67.5%

Cost per questionlower is better

GLM 5.3 Flash$0.00015

Inkling Small$0.00047

Output speedhigher is better

GLM 5.3 Flash83

Inkling Small233

Time to first tokenlower is better

GLM 5.3 Flash0.5 s

Inkling Small0.5 s

End-to-end response timelower is better

GLM 5.3 Flash7.4 s

Inkling Small3.6 s

Tokens per questionlower is better

GLM 5.3 Flash560

Inkling Small273

Context windowhigher is better

GLM 5.3 Flash1M

Inkling Small524k

Score vs. cost per question

Both models in color, every other model in grey

Results by subject and dataset

Questions answered correctly. Small samples: a gap of one or two questions is noise.

Subject	Questions	GLM 5.3 Flash	Inkling Small
Science	30	22/30	24/30
Engineering	15	8/15	6/15
Medicine	11	5/11	6/11
Economics	9	7/9	7/9
Law	6	4/6	4/6
Humanities & social science	9	8/9	7/9
SuperGPQA dataset	50	27/50	28/50
MMLU-Pro dataset	30	27/30	26/30

Specifications and pricing

From OpenRouter's catalogue, plus our test dates

Specification	GLM 5.3 Flash	Inkling Small
Creator	Z.ai	Thinking Machines
Released	26 Aug 2026	30 Jul 2026
Weights	Open weights	Open weights
Reasoning	Yes	Yes
Input	text, image, video	text, image, audio
Output	text	text
Context window	1M tokens	524k tokens
Knowledge cutoff	—	—
List price in / out per 1M	$0.15 / $0.5	$0.45 / $1.2
Blended price per 1M (3:1)	$0.24	$0.64
Cheapest host	Relace · $0.0379 / $0.074	DeepInfra · $0.45 / $1.2
Hosts on OpenRouter	34	1
Last tested	26 Oct 2026	26 Oct 2026

Compare any two models →

GLM 5.3 Flash vs Inkling Small: frequently asked questions

Is GLM 5.3 Flash better than Inkling Small?: On accuracy they are statistically tied: GLM 5.3 Flash scored 67.5% and Inkling Small 67.5% on the same 80 questions from open datasets. Similar accuracy; GLM 5.3 Flash costs less per question.
Which is cheaper, GLM 5.3 Flash or Inkling Small?: GLM 5.3 Flash is cheaper: $0.00015 per question as billed, against $0.00047. List prices: GLM 5.3 Flash $0.15 in / $0.5 out, Inkling Small $0.45 in / $1.2 out per million tokens.
Which is faster, GLM 5.3 Flash or Inkling Small?: Inkling Small is faster at 233 output tokens per second, against 83. Time to first token: 0.5 s for GLM 5.3 Flash, 0.5 s for Inkling Small.
Which has the larger context window, GLM 5.3 Flash or Inkling Small?: GLM 5.3 Flash, with 1M tokens against 524k.

Measure

GLM 5.3 Flash

Inkling Small

Edge

Verification scoreHigher is better

67.5%

Too close to call

Cost per questionLower is better

$0.00015

$0.00047

GLM 5.3 Flash

Output speedHigher is better

233

Inkling Small

Time to first tokenLower is better

0.5 s

Similar

End-to-end response timeLower is better

7.4 s

3.6 s

Inkling Small

Tokens per questionLower is better

560

273

Inkling Small

Context windowHigher is better

524k

GLM 5.3 Flash

Subject

Questions

GLM 5.3 Flash

Inkling Small

Science

22/30

24/30

Engineering

8/15

6/15

Medicine

5/11

6/11

Economics

7/9

Law

4/6

Humanities & social science

8/9

7/9

SuperGPQA dataset

27/50

28/50

MMLU-Pro dataset

27/30

26/30

Specification

GLM 5.3 Flash

Inkling Small

Creator

Z.ai

Thinking Machines

Released

26 Aug 2026

30 Jul 2026

Weights

Open weights

Reasoning

Yes

Input

text, image, video

text, image, audio

Output

text

Context window

1M tokens

524k tokens

Knowledge cutoff

—

List price in / out per 1M

$0.15 / $0.5

$0.45 / $1.2

Blended price per 1M (3:1)

$0.24

$0.64

Cheapest host

Relace · $0.0379 / $0.074

DeepInfra · $0.45 / $1.2

Hosts on OpenRouter

Last tested

26 Oct 2026

GLM 5.3 Flash vs Inkling Small: frequently asked questions

Is GLM 5.3 Flash better than Inkling Small?

On accuracy they are statistically tied: GLM 5.3 Flash scored 67.5% and Inkling Small 67.5% on the same 80 questions from open datasets. Similar accuracy; GLM 5.3 Flash costs less per question.

Which is cheaper, GLM 5.3 Flash or Inkling Small?

GLM 5.3 Flash is cheaper: $0.00015 per question as billed, against $0.00047. List prices: GLM 5.3 Flash $0.15 in / $0.5 out, Inkling Small $0.45 in / $1.2 out per million tokens.

Which is faster, GLM 5.3 Flash or Inkling Small?

Inkling Small is faster at 233 output tokens per second, against 83. Time to first token: 0.5 s for GLM 5.3 Flash, 0.5 s for Inkling Small.

Which has the larger context window, GLM 5.3 Flash or Inkling Small?

GLM 5.3 Flash, with 1M tokens against 524k.

GLM 5.3 Flash vs Inkling Small: accuracy, speed and price

Verdict

Which should you choose?

Head to head

Side by side

Every measure

Score vs. cost per question

Results by subject and dataset

Specifications and pricing

Related comparisons

GLM 5.3 Flash vs Inkling Small: frequently asked questions

GLM 5.3 Flash vs Inkling Small: accuracy, speed and price

Verdict

Which should you choose?

Head to head

Side by side

Every measure

Score vs. cost per question

Results by subject and dataset

Specifications and pricing

Related comparisons

GLM 5.3 Flash vs Inkling Small: frequently asked questions