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GLM-5.1 vs GLM-5.3

Prices checked

GLM-5.3 takes 2 of 5 rounds against GLM-5.1. It is also the cheaper of the two to run, at $0.72 per million tokens against $1.08.

Z.ai

GLM-5.1

200k context · tool calling · open weights

$1.08/M tokens

Cheapest price, at HPC-AI · $0.52 per 1,000 pages

Z.aiWins 2 rounds

GLM-5.3

1M context · tool calling · open weights

$0.72/M tokens

Cheapest price, at NanoGPT · $0.43 per 1,000 pages

View at NanoGPT

Maker's price in (lower wins)

$1.40/M

$1.40/M

Maker's price out (lower wins)

$4.40/M

$4.40/M

Cheapest price (lower wins)

$1.08/M at HPC-AI

$0.72/M at NanoGPT

Maker's price, blended (lower wins)

$2.15/M

$2.15/M

Cost per 1,000 pages (lower wins)

$0.52

$0.43

Context

200k tokens

1M tokens

Open weights

yes

yes

Tool calling

yes

yes

Structured output

yes

yes

Reads images

no

no

Reasoning

yes

yes

Released

7 Apr 2026

14 Aug 2026

Providers selling it

58

105

Price we measure against

the maker's own

the maker's own

Trains on your prompts (no is better)

not published

not published

Providers selling both · 44

  • NanoGPT$1.15 / $0.72
  • OpenRouter$2.15 / $0.40
  • Baidu$2.15 / $0.43
  • GMI Cloud$1.51 / $1.08
  • FastRouter$1.66 / $1.05
  • Nous Portal$1.40 / $1.40
  • SiliconFlow$1.83 / $1.08
  • LLM Gateway$2.14 / $0.79

GLM-5.1, then GLM-5.3, per million tokens; the 8 cheapest of 44.

Go further

Add a third or fourth model, or change the weighting, in the tool.

Open in the compare tool Every price for GLM-5.1Every price for GLM-5.3

What moved this week

  1. GLM-5.1

    io.net Intelligence · 2% dearer ·

    $1.40 / $4.40 $1.37 / $4.31

  2. GLM-5.3

    Baidu · 80% cheaper ·

    $0.28 / $0.88 $1.40 / $4.40

  3. GLM-5.3

    io.net Intelligence · 11% dearer ·

    $1.88 / $5.90 $1.58 / $5.65

  4. GLM-5.3

    DekaLLM · 6% cheaper ·

    $0.18 / $2.95 $0.25 / $2.95

  5. GLM-5.3

    Melious · 4% cheaper ·

    $1.12 / $3.35 $1.16 / $3.48

  6. GLM-5.3

    Reka · 45% cheaper ·

    $0.14 / $2.10 $0.14 / $4.20

  7. GLM-5.3

    Vercel AI Gateway · 13% dearer ·

    $1.40 / $4.40 $1.20 / $4

  8. GLM-5.3

    Inceptron · 54% dearer ·

    $1.20 / $3.50 $0.60 / $2.80

  9. GLM-5.3

    Inceptron · 54% dearer ·

    $1.20 / $3.50 $0.60 / $2.80

  10. GLM-5.1

    Baidu · 45% dearer ·

    $1.40 / $4.40 $0.96 / $3.03

  11. GLM-5.1

    Chutes · 7% cheaper ·

    $0.90 / $2.90 $0.98 / $3.08

  12. GLM-5.1

    Chutes · 7% cheaper ·

    $0.90 / $2.90 $0.98 / $3.08

  13. GLM-5.1

    Nous Portal · 6% cheaper ·

    $0.90 / $2.90 $0.97 / $3.04

  14. GLM-5.3

    Decart · 0.4% cheaper ·

    $0.84 / $2.69 $0.84 / $2.71

  15. GLM-5.3

    OpenRouter · 2% cheaper ·

    7¢ / $1.40 7.9¢ / $1.40

  16. GLM-5.3

    Wafer · 2% cheaper ·

    7¢ / $1.40 7.9¢ / $1.40

  17. GLM-5.3

    Prime Inference · 30% cheaper ·

    $0.98 / $3.08 $1.40 / $4.40

  18. GLM-5.3

    PrimeIntellect · 30% cheaper ·

    $0.98 / $3.08 $1.40 / $4.40

  19. GLM-5.3

    Eden AI · 10% dearer ·

    $1.40 / $4.40 $1.20 / $4.20

  20. GLM-5.3

    LLM Gateway · 10% cheaper ·

    $0.45 / $1.80 $0.50 / $2

Frequently asked

Which is cheaper, GLM-5.1 or GLM-5.3?
GLM-5.3, at $0.72 per million tokens against $1.08 for GLM-5.1, blended 3 in : 1 out, read on 31 Oct 2026.
Where is each one cheapest?
GLM-5.1: $1.08 at HPC-AI. GLM-5.3: $0.72 at NanoGPT.
Can I buy both from one provider?
Yes. 44 providers sell both: NanoGPT, OpenRouter, Baidu, GMI Cloud, FastRouter, Nous Portal, and more. The cheapest of them for the two together is NanoGPT.
Which holds more context?
GLM-5.3, at 1M tokens against 200k.

Prices exclude tax, read 31 Oct 2026 from each provider's own catalog. They are per M tokens, blended 3 in : 1 out, and a page is 600 tokens in and 60 out. Bars are scaled to the larger value in each row.

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