multimodal model comparison
GLM-5.3-Flash vs Qwen3.8-Omni-Flash
GLM-5.3-Flash and Qwen3.8-Omni-Flash are both current multimodal models, from Z.ai and Alibaba Qwen. Both cost $0.15 per 1M input tokens. Both accept 1,000,000 tokens of context.
Data verified October 13, 2026 · Dataset 2026-10-13
Side by side
Standard-tier prices in effect today. The better value in each row is highlighted.
| Fact | GLM-5.3-Flash | Qwen3.8-Omni-Flash |
|---|---|---|
| Price per 1M input tokens | $0.15 | $0.15 |
| Price per 1M output tokens | $0.50 | $0.47 (better) |
| Cost of 10M input and 2M output tokens | $2.50 | $2.44 (better) |
| Arena Text | 1475 Elo (#21 of 49) | Not measured |
| GPQA Diamond | 90.2% (#27 of 40) | Not measured |
| FrontierMath Tiers 1-3 (v2) | 55.8% (#31 of 40) | Not measured |
| Provider | Z.ai | Alibaba Qwen |
| Release date | August 26, 2026 | September 20, 2026 |
| Access | API and open weights | API only |
| Context window | 1,000,000 tokens | 1,000,000 tokens |
| Max output | 128,000 tokens | 131,072 tokens |
| Input | text, image, video | text, image, audio, video |
| Output | text | text |
When to choose each
GLM-5.3-Flash
Best for
- Low-cost coding from screenshots or screen recordings
- Document and research agents on a budget
Watch out for
- Thinking cannot be disabled
- A faster GLM-5.3-FlashX is a separate model id at $0.37 input and $1.25 output per 1M tokens
Qwen3.8-Omni-Flash
Best for
- Long audio and video understanding at low cost
- Agent pipelines that must reason over meetings, calls or recorded media
Watch out for
- Output is text only; for spoken replies Alibaba lists a separate realtime variant
- Alibaba's comparisons with Gemini 3.8 Flash are self-reported and have not been reproduced independently here
- The release date is the Alibaba Cloud announcement date, 2026-09-20
GLM-5.3-Flash vs Qwen3.8-Omni-Flash FAQ
Which is cheaper, GLM-5.3-Flash or Qwen3.8-Omni-Flash?
Both cost $0.15 per 1M input tokens. For 10M input and 2M output tokens, GLM-5.3-Flash costs $2.50 and Qwen3.8-Omni-Flash $2.44 at standard rates.
Which has the larger context window, GLM-5.3-Flash or Qwen3.8-Omni-Flash?
Both accept 1,000,000 tokens of context.
Can I run GLM-5.3-Flash or Qwen3.8-Omni-Flash myself?
GLM-5.3-Flash is released as open weights you can run yourself; Qwen3.8-Omni-Flash is available through its provider's API only.
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- Gemini 3.8 Flash vs GLM-5.3-Flash
- Gemini 3 Flash Preview vs GLM-5.3-Flash
- GLM-5.3-Flash vs GPT-4.1 nano
Production evaluation
Choosing between GLM-5.3-Flash and Qwen3.8-Omni-Flash?
Public benchmarks narrow the shortlist. We run both on your own tasks, data and cost limits, then build the routing and review controls to run the winner in production.
- A head-to-head evaluation on your real workload
- Routing between models by cost and difficulty