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GLM 5.2 vs Llama 3.1 405B (reasoning)

Compare GLM 5.2 from Z.AI and Llama 3.1 405B (reasoning) from Llama on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

Z.AIGLM 5.2LlamaLlama 3.1 405B (reasoning)
Z.AI logo
GLM 5.2
Z.AI · text → text

GLM-5.2 is Z.ai’s flagship model for the era of long-horizon tasks. With a truly usable 1M-token context window, it can handle project-level engineering context, execute long-running tasks more reliably, follow engineering standards more consistently, and complete the full development workflow from requirements to multi-platform deployment in a single task.

Input$1.1268 /M
Output$3.9438 /M
Cache read$0.2817 /M
Llama logo
Llama 3.1 405B (reasoning)
Llama · → text

Input$4 /M
Output$4 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

GLM 5.2
Llama 3.1 405B (reasoning)
Input /M
$1.1268
$4
Output /M
$3.9438
$4
Cache read /M
$0.2817
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Context length
1,000,000
0
Max output
131,072
0
Time to First Token
0.7 s
-
Throughput
37.0 tok/s
-
Modalities
text
Supported Parameters
thinkingtoolsfunction callingstructured outputs
API Formats
chat_completions · claude_api
Released
June 16, 2026
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Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

glm-5.2llama-3.1-405b-reasoning

Tokens / day

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Requests / day

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Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

glm-5.2llama-3.1-405b-reasoning

Throughput (tok/s)

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TTFT (s)

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Uptime (%)

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LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
glm-5.2llama-3.1-405b-reasoning
1280136014401520
Overall
13351472
Coding
13751509
Math
13151476
Hard prompts
13411492
Instruction following
13131465
Multi-turn
13391469
Creative writing
13011451
Longer query
13261482
Chinese
13211517
English
13601480

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

Estimate your monthly bill for the same workload on each model.

GLM 5.2
$127 /mo
Llama 3.1 405B (reasoning)
$300 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: GLM 5.2, Llama 3.1 405B (reasoning)?

GLM 5.2: $3.9438/M output tokens; Llama 3.1 405B (reasoning): $4/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

GLM 5.2: 1509; Llama 3.1 405B (reasoning): 1375 (LMArena coding leaderboard).

Can I call GLM 5.2 and Llama 3.1 405B (reasoning) with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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