Model profile
z-ai

Z.ai: GLM 4.5

Z.ai: GLM 4.5 is a budget text-first model from z-ai with a balanced runtime profile, extended context posture, and the clearest fit around long-context research / agent workflows.

Best for: Long-context research / Agent workflowsBalanced latencyExtended contextBudget pricing
Intelligence
26.4

Benchmark blend

Coding
26.3

Dev workflow signal

Context
131K Tokens

Extended

Input Price
$0.49

Budget tier

Decision snapshot
49

Z.ai: GLM 4.5 currently reads as a budget text-first option with extended context and a balanced runtime profile.

Overall profile
Use-case specific
Best for
Long-context research / Agent workflows
Latency tier
Balanced
Price tier
Budget
Source coverage
OpenRouterArtificial Analysis

Decision Strip

Decision rail before the raw tables

Core buy-side signals stay in one pass. The rest of the page expands only after intelligence, speed, context, and price are clear.

Intelligence
26.4
26

General reasoning and benchmark headroom.

Limited
Speed
36 tok/s
57

TTFT 0.79s

Situational
Context
131K Tokens
76

How much prompt and task state can stay in view.

Competitive
Price
$0.49
86

$1.90 output / 1M

Efficient

Editorial Profile

Z.ai: GLM 4.5 in one narrative

Positioning, tradeoffs, and fit are consolidated into one read instead of repeating the same story across separate cards.

Use-case specificCoding score 26Math score 74

GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly enhanced capabilities in reasoning, code generation, and agent alignment. It supports a hybrid inference mode with two options, a "thinking mode" designed for complex reasoning and tool use, and a "non-thinking mode" optimized for instant responses. Users can control the reasoning behaviour with the `reasoning` `enabled` boolean. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#enable-reasoning-with-default-config)

Identity

z-ai text-first profile

Positioning

Long-context research / Agent workflows with extended context and balanced runtime.

Cost posture

Efficient spend profile. More comfortable for sustained prompt volume if the capability fit is right.

Strengths
  • Large context headroom supports repo-wide prompts and long research sessions.

Tradeoffs
  • Budget-friendly input pricing is a strength, but raw capability may vary by workload.

  • Latency is balanced rather than ultra-fast, which is fine for most workflows but not the snappiest tier.

  • Current metadata points to a text-first profile rather than a broad multimodal one.

Best fit
  • Long-context summarization, repo analysis, and policy or document review.

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Benchmarks

Grouped by job-to-be-done

Only benchmark categories with actual signal are shown. Secondary values stay as simple definitions instead of nested micro-cards.

General intelligence

Broad reasoning, knowledge depth, and flagship benchmark posture.

Intelligence Index
26.4
MMLU Pro
83.5%
GPQA
78.2%
HLE
12.2%
Coding

Software implementation, debugging quality, and coding benchmark signal.

Coding Index
26.3
LiveCodeBench
0.738
SciCode
34.8%
Math

Formal reasoning, structured problem solving, and competition-style math.

Math Index
73.7
AIME
87.3%
AIME 2025
73.7%
Math 500
97.9%
Agent / tool use

Long-horizon execution quality and interactive benchmark evidence.

IFBench
44.1%
TAU2
43.0%
TerminalBench Hard
22.0%
LCR
48.3%

Specs & Pricing

Technical snapshot and cost posture

Specs stay neutral, pricing gets emphasis through values rather than extra containers. Raw provider internals remain in metadata at the end.

Technical snapshot
Context Window
131K Tokens
Vision
Text-first
Modalities
text->text, text
Tokenizer
Other
Max Completion
98304
Moderation
No
Supported Parameters
frequency_penaltyinclude_reasoningmax_tokenspresence_penaltyreasoningrepetition_penaltyresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_ktop_p
Input Modalities
text
Output Modalities
text
Price architecture
Input
per 1M input tokens
$0.49
Output
per 1M output tokens
$1.90
Blended
AA 3:1 mix
$0.84

This model is relatively efficient on price. It is the easier fit when sustained prompt volume matters.

OR Cache Read
$0.00

Metadata

Raw source tables at the end

Verification details remain available, but the page no longer forces them ahead of the editorial read.