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Model comparison

GLM-5.2 vs o1-pro

Updated July 31, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific workload.

21 confirmed releases in the last 30 daystrack changes
GLM-5.2

Z.AI

62.9/100

Estimated · Public rank #41

90% interval 47.7–78.2

o1-pro

OpenAI

45.0/100

Estimated · Public rank #149

90% interval 33.5–56.5

GLM-5.2 has the higher public score estimate, 62.94 versus 45.01, but the 90% score intervals overlap. Treat that as a lead, not a settled winner.

1 results are shared. Category rows based on different benchmark sets are marked directional and do not name a winner.

Which one for your work

Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.

  • Long documents

    Prompts that approach the documented context limit

    GLM-5.2

    GLM-5.2 has the larger documented context window.

    Confidence: documented

  • Chat turn cost

    1K fresh input + 500 output tokens

    GLM-5.2

    GLM-5.2 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates

Show secondary and unsupported calls
  • Repository review cost

    50K fresh input + 3K output tokens

    GLM-5.2

    GLM-5.2 has the lower estimated token cost for this stated workload. Costs use the listed standard API rates.

    Confidence: listed-rates

  • Coding work

    Code generation, repair, and software-engineering tasks

    Not enough matched evidence

    No shared weighted benchmark basis supports a winner.

    Confidence: limited

  • Agentic work

    Tool use, computer use, and multi-step task completion

    Not enough matched evidence

    No shared weighted benchmark basis supports a winner.

    Confidence: limited

  • Cache-heavy agent loop cost

    200K cached + 20K fresh input + 10K output tokens

    Not enough matched evidence

    The page does not recommend a cost winner because at least one model cannot fit the stated workload in one request. o1-pro does not fit this workload in one request. GLM-5.2 has no published cached-input rate, so cached tokens use its listed input rate. o1-pro has no published cached-input rate, so cached tokens use its listed input rate.

    Confidence: rate-fallback

What is actually comparable

Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.

Shared results
1
GLM-5.2 only
17
o1-pro only
0
Like-for-like categories
0 / 8

1 category uses different evidence sets. Those rows remain visible for coverage context but do not name a winner.

Category results, on a stated basis

Each row states whether both averages use the same weighted benchmark set. Directional and not-comparable rows remain visible, but they never receive a winner in this template.

Knowledge

Directional only
GLM-5.2
59.6
o1-pro
79.0
Weighted basis
2 vs 1 rows
Reading
Directional only

Agentic

Not comparable
GLM-5.2
81.0
o1-pro
Not measured
Weighted basis
1 vs 0 rows
Reading
Not comparable

Coding

Not comparable
GLM-5.2
62.1
o1-pro
Not measured
Weighted basis
1 vs 0 rows
Reading
Not comparable

Reasoning

Not comparable
GLM-5.2
Not measured
o1-pro
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Math

Not comparable
GLM-5.2
95.9
o1-pro
Not measured
Weighted basis
2 vs 0 rows
Reading
Not comparable

Multilingual

Not comparable
GLM-5.2
Not measured
o1-pro
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Multimodal

Not comparable
GLM-5.2
Not measured
o1-pro
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Instruction following

Not comparable
GLM-5.2
Not measured
o1-pro
Not measured
Weighted basis
0 vs 0 rows
Reading
Not comparable

Shape of the matched evidence

Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.

Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.

What each workload costs

Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.

Chat turn

1K fresh input + 500 output tokens

GLM-5.2
$0.0036
Fits in one request
o1-pro
$0.45
Fits in one request

GLM-5.2 has the lower modeled cost

Costs use the listed standard API rates.

Repository review

50K fresh input + 3K output tokens

GLM-5.2
$0.0832
Fits in one request
o1-pro
$9.30
Fits in one request

GLM-5.2 has the lower modeled cost

Costs use the listed standard API rates.

Cache-heavy agent loop

200K cached + 20K fresh input + 10K output tokens

GLM-5.2
$0.352
Fits in one request
Cached input priced at the published list-input rate
o1-pro
$39.00
Does not fit in one request
Cached input priced at the published list-input rate

o1-pro does not fit this workload in one request. GLM-5.2 has no published cached-input rate, so cached tokens use its listed input rate. o1-pro has no published cached-input rate, so cached tokens use its listed input rate.

Specification differences

Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.

Context window

Maximum documented context; output-token limits may be lower.

GLM-5.2

1M

o1-pro

200K

API model ID

GLM-5.2

Not sourced

o1-pro

Not sourced

Cached-input rate

A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.

GLM-5.2

Not published

o1-pro

Not published

Documented inputs

GLM-5.2

Not sourced

o1-pro

Not sourced

Documented outputs

GLM-5.2

Not sourced

o1-pro

Not sourced

Provider availability

GLM-5.2

Not sourced

o1-pro

Not sourced

Reasoning profile

GLM-5.2

Reasoning

o1-pro

Reasoning

Weight access

GLM-5.2

Open Weight

o1-pro

Proprietary

License

GLM-5.2

Open Weight

o1-pro

Proprietary

Release date

GLM-5.2

2026-06-16

o1-pro

2024-12-01

If you already use one of these models
Deployment change
The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
Quality signal
GLM-5.2 has the higher public score estimate, 62.94 versus 45.01, but the 90% score intervals overlap.
Workload cost
Repository review: $0.0832 vs $9.30. Cache-heavy agent loop: $0.352 vs $39.00.
Context tradeoff
GLM-5.2 has the larger documented window (1M).

Run the same representative tasks against both endpoints before changing production traffic.

Benchmark evidence

The full public result ledger is available for audit without forcing a wide desktop table onto a phone.

Browse raw public benchmark evidence18 rows

Agentic

  • Terminal-Bench 2.0

    GLM-5.281%
    Source
    o1-pro

    Not directly comparable

  • MCP Atlas

    GLM-5.276.8%
    Source
    o1-pro

    Not directly comparable

  • Toolathlon

    GLM-5.248.2%
    Source
    o1-pro

    Not directly comparable

  • ResearchClawBench

    GLM-5.220.7%
    Source
    o1-pro

    Not directly comparable

Coding

  • SWE-bench Pro

    GLM-5.262.1%
    Source
    o1-pro

    Not directly comparable

  • NL2Repo

    GLM-5.248.9%
    Source
    o1-pro

    Not directly comparable

  • Terminal-Bench 2.0

    GLM-5.281.0%
    Source
    o1-pro

    Not directly comparable

  • ProgramBench

    GLM-5.263.7%
    Source
    o1-pro

    Not directly comparable

  • cursorBench32

    GLM-5.255.0%
    Source
    o1-pro

    Not directly comparable

Reasoning

  • CritPt

    GLM-5.220.9%
    Source
    o1-pro

    Not directly comparable

Knowledge

  • GPQA

    GLM-5.291.2%
    Source
    o1-pro79%
    Source

    GLM-5.2 leads this result

  • GPQA-D

    GLM-5.291.2%
    Source
    o1-pro

    Not directly comparable

  • HLE

    GLM-5.254.7%
    Source
    o1-pro

    Not directly comparable

  • HLE w/o tools

    GLM-5.240.5%
    Source
    o1-pro

    Not directly comparable

Math

  • AIME26

    GLM-5.299.2%
    Source
    o1-pro

    Not directly comparable

  • HMMT Nov 2025

    GLM-5.294.4%
    Source
    o1-pro

    Not directly comparable

  • HMMT Feb 2026

    GLM-5.292.5%
    Source
    o1-pro

    Not directly comparable

  • MMAnswerBench

    GLM-5.291.0%
    Source
    o1-pro

    Not directly comparable

Frequently asked questions

Which is better, GLM-5.2 or o1-pro?

GLM-5.2 has the higher public score estimate, 62.94 versus 45.01, but the 90% score intervals overlap. The higher estimate is not a decisive winner because the uncertainty ranges overlap.

Which is better for coding, GLM-5.2 or o1-pro?

The published evidence does not provide a shared weighted coding basis for both models, so BenchLM does not name a coding winner.

Which is better for agentic tasks, GLM-5.2 or o1-pro?

The published evidence does not provide a shared weighted agentic tasks basis for both models, so BenchLM does not name a agentic tasks winner.

Which costs less, GLM-5.2 or o1-pro?

For the stated presets, chat costs $0.0036 on GLM-5.2 and $0.45 on o1-pro; repository review costs $0.0832 and $9.30; the cache-heavy agent loop costs $0.352 and $39.00. o1-pro does not fit this workload in one request. GLM-5.2 has no published cached-input rate, so cached tokens use its listed input rate. o1-pro has no published cached-input rate, so cached tokens use its listed input rate.

Which has the larger context window, GLM-5.2 or o1-pro?

GLM-5.2 has the larger documented context window: 1M, compared with 200K.

Related comparisons

Last updated July 31, 2026

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