GLM 5.3 Flash
Z.ai's efficient native multimodal model for fast coding, visual understanding, tool use, automation, and long-horizon professional workflows.
Overview
Recommended use cases and a precise technical profile, generated from the same reviewed model record used throughout this page.
Frequent implementation, terminal, debugging, and repository tasks that benefit from fast feedback and efficient inference.
Understand screenshots, charts, PDFs, presentations, spreadsheets, and rendered documents as part of multi-step workflows.
Use tools, inspect results, and iterate through research, file processing, content production, and business operations.
| Model ID | glm-5.3-flash | Provider | Z.ai |
| Protocol | OPENAI compatible | DIT availability | 1 active route |
| Input | Text, Image, Video, File | Output | Text |
| Context window | 1,048,576 tokens | Maximum output | 163,840 tokens |
| Released | Aug 30, 2026 | Knowledge cutoff | Not published |
| Endpoint | Path | Status |
|---|---|---|
| Chat Completions | /v1/chat/completions | Supported |
Providers
Compare DIT market routing with the official upstream reference across price, speed, and availability. Supplier identities remain private.
| Provider | Input /M | Output /M | Cache read /M | Latency | Throughput | Uptime |
|---|---|---|---|---|---|---|
DIT Market 40% off Aggregated supply · 1 active route | —Awaiting data | —Awaiting data | —< 50 requests | |||
Z.ai official Reference Direct upstream · reviewed list price | $0.15 | $0.5 | $0.03 | —Not published | —Not published | Not publishedNo status source |
Prices are USD per 1M tokens. DIT performance and uptime appear only after 50 eligible requests; supplier identities and customer traffic remain private.
Pricing
Compare DIT market rates directly with reviewed official prices so savings remain visible and auditable.
| Usage | Official | DIT market | Saving | Billing basis |
|---|---|---|---|---|
| Input tokens | $0.15 | $0.09 | ~40% | Per 1M tokens |
| Output tokens | $0.5 | $0.3 | ~40% | Per 1M tokens |
| Cached input | $0.03 | $0.018 | ~40% | Per 1M cached tokens |
Z.ai lists a temporary 50% promotional rate through September 9, 2026; comparisons on this page use the reviewed standard list price.
Performance
Latency, throughput, activity, and request success use privacy-safe DIT runtime aggregates only when the eligibility threshold is met.
DIT runtime metrics are pending
Benchmarks
Reviewed evaluation results with configuration notes and source links kept alongside every score.
| Benchmark | Category | Score | Configuration | Source |
|---|---|---|---|---|
| Terminal Bench 2.1 | Coding | 84.3 | Official evaluation reported by Z.ai. | Source ↗ |
| DeepSWE v1.1 | Evaluation | 63.4 | Official coding-agent evaluation reported by Z.ai. | Source ↗ |
| Toolathlon Verified | Evaluation | 78.4 | Official tool-use evaluation reported by Z.ai. | Source ↗ |
| OfficeQA Pro | Evaluation | 62.4 | Official multimodal professional-work evaluation reported by Z.ai. | Source ↗ |
Quick Start
A copy-ready request for the compatible DIT endpoint using this model's reviewed identifier.
curl https://api.dit.ai/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "glm-5.3-flash",
"messages": [{"role":"user","content":"Explain dynamic model routing."}]
}'Sources
Field-level provenance keeps pricing, limits, capabilities, and benchmarks independently reviewable.
| Source | Type | Covers | Checked |
|---|---|---|---|
| Z.ai GLM-5.3-Flash announcement ↗ | Official | Technical profile, Released, Modalities, Capabilities, Benchmarks | Sep 1, 2026 |
| Z.ai GLM-5.3-Flash model card ↗ | Hugging Face | Context, Maximum output, Reasoning effort, Endpoint | Sep 1, 2026 |
| Z.ai model pricing ↗ | Official | Pricing | Sep 1, 2026 |
Official sources take priority. Third-party metadata is retained only when its field and review date are shown.
Models like GLM 5.3 Flash
Reviewed models ranked by capability overlap, protocol compatibility, and context similarity.
Frequently asked questions
Answers use the same reviewed facts and pricing fields presented in the tables above.
What is GLM 5.3 Flash?+
Z.ai's efficient native multimodal model for fast coding, visual understanding, tool use, automation, and long-horizon professional workflows.
How much does GLM 5.3 Flash cost?+
The reviewed official rate is $0.15 per 1M input tokens and $0.5 per 1M output tokens. DIT pricing is shown only when a live DIT route exists.
What is the context length of GLM 5.3 Flash?+
GLM 5.3 Flash supports a reviewed context window of 1,048,576 tokens and up to 163,840 output tokens.
What capabilities does GLM 5.3 Flash support?+
Reviewed capabilities include Reasoning, Tool calling, Visual understanding, Long context, Agentic workflows. Consult the linked official documentation for endpoint-specific limits.
What inputs and outputs does GLM 5.3 Flash support?+
Reviewed input modalities: Text, Image, Video, File. Reviewed output modalities: Text.
Which API endpoints and reasoning levels does GLM 5.3 Flash support?+
GLM 5.3 Flash is documented for Chat Completions. Reasoning effort can be set to low, high, max, with max as the documented default.
Is GLM 5.3 Flash available on DIT?+
GLM 5.3 Flash currently has 1 active route. DIT selects eligible supply by price and health, with automatic failover when another route is available.
When was GLM 5.3 Flash released?+
GLM 5.3 Flash was released on Aug 30, 2026.