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GLM 5.3 vs GPT 5.6 Sol Disc

Compare GLM 5.3 from Z.AI and GPT 5.6 Sol Disc from OpenAI 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 5.3OpenAIGPT 5.6 Sol Disc
+ Add model · 2/4
Z.AI logo
GLM 5.3
Z.AI · text → text

GLM-5.3 is Z.AI’s coding and agentic reasoning model, built for complex software engineering, long-running agent tasks, vulnerability analysis, and other demanding workloads. Building on GLM-5.2, it incorporates further post-training improvements to deliver stronger coding performance, better task execution, and greater token efficiency. We currently offer the production-ready GLM-5.3 API with unlimited concurrency, making it well suited for high-throughput workloads, coding agents, and large-scale automation. For a limited time, GLM-5.3 is available at 10% off.

Input$1.1268 /M
Output$3.9438 /M
Cache read$0.2817 /M
Details
50% off
OpenAI logo
GPT 5.6 Sol Disc
OpenAI · text, image → text

GPT-5.6 Sol (limited-time 50% off) is OpenAI’s frontier reasoning model for complex coding, professional knowledge work, deep research, and long-running agents. It supports a roughly 1.05M-token context window, image understanding, and extensive tool use. Compared with Terra and Luna, Sol prioritizes capability and reliability on demanding tasks.

Input$4$2 /M
Output$20$10 /M
Details

Pricing & Specifications

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

GLM 5.3
GPT 5.6 Sol Disc
Input /M
$1.1268
$4$2−50%
Output /M
$3.9438
$20$10−50%
Cache read /M
$0.2817
-
Context length
1,048,576
1,050,000
Max output
131,072
128,000
Time to First Token
0.8 s
7.0 s
Throughput
48.4 tok/s
72.9 tok/s
Modalities
text
textimage
Supported Parameters
thinkingtoolsfunction callingstructured outputs
toolsthinkingstructured outputs
API Formats
chat_completions · responses
Released
August 14, 2026
August 18, 2026

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-5.3gpt-5.6-sol-disc

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

glm-5.3gpt-5.6-sol-disc

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

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Cost calculator

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

GLM 5.3
$127 /mo
GPT 5.6 Sol Disc
$540$270 /mo

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

FAQ

Which is cheaper: GLM 5.3, GPT 5.6 Sol Disc?

GLM 5.3: $3.9438/M output tokens; GPT 5.6 Sol Disc: $10/M. Use the cost calculator above to estimate your own workload.

Which responds faster?

GLM 5.3: 0.8s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

How large is each context window?

GLM 5.3 accepts 1,048,576 and GPT 5.6 Sol Disc accepts 1,050,000 input tokens. Maximum output per request is 131,072 tokens on GLM 5.3 and 128,000 tokens on GPT 5.6 Sol Disc.

Which one generates tokens faster?

GPT 5.6 Sol Disc at 72.9 tok/s and GLM 5.3 at 48.4 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

GLM 5.3 accepts text input and supports thinking, tool calling, function calling and structured outputs; GPT 5.6 Sol Disc accepts text and image input and supports tool calling, thinking and structured outputs.

Can I call GLM 5.3 and GPT 5.6 Sol Disc 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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