text model comparison
Gemini 3.5 Flash-Lite vs GLM-5.3-Flash
Gemini 3.5 Flash-Lite and GLM-5.3-Flash are both current text models, from Google and Z.ai. GLM-5.3-Flash is 50% cheaper per 1M input tokens than Gemini 3.5 Flash-Lite, $0.15 vs $0.30. On Arena Text, Gemini 3.5 Flash-Lite scores 1455 Elo and GLM-5.3-Flash 1475 Elo (Arena, measured October 8, 2026). Both accept about 1.05M tokens of context (1,048,576 and 1,000,000).
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 | Gemini 3.5 Flash-Lite | GLM-5.3-Flash |
|---|---|---|
| Price per 1M input tokens | $0.30 | $0.15 (better) |
| Price per 1M output tokens | $2.50 | $0.50 (better) |
| Cost of 10M input and 2M output tokens | $8 | $2.50 (better) |
| Arena Text | 1455 Elo (#32 of 49) | 1475 Elo (#21 of 49) (better) |
| GPQA Diamond | 83.3% (#35 of 40) | 90.2% (#27 of 40) (better) |
| FrontierMath Tiers 1-3 (v2) | 26% (#37 of 40) | 55.8% (#31 of 40) (better) |
| Provider | Z.ai | |
| Release date | July 21, 2026 | August 26, 2026 |
| Access | API only | API and open weights |
| Context window | 1,048,576 tokens | 1,000,000 tokens |
| Max output | 65,536 tokens | 128,000 tokens |
| Input | text, image, audio, video | text, image, video |
| Output | text | text |
When to choose each
Gemini 3.5 Flash-Lite
Best for
- High-volume extraction, structured parsing, and cost-sensitive subagent trials
Watch out for
- The represented prices are standard API rates; batch, flex, and priority consumption use different rates
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
Gemini 3.5 Flash-Lite vs GLM-5.3-Flash FAQ
Which is cheaper, Gemini 3.5 Flash-Lite or GLM-5.3-Flash?
GLM-5.3-Flash is 50% cheaper per 1M input tokens than Gemini 3.5 Flash-Lite, $0.15 vs $0.30. For 10M input and 2M output tokens, Gemini 3.5 Flash-Lite costs $8 and GLM-5.3-Flash $2.50 at standard rates.
Which scores higher on independent benchmarks, Gemini 3.5 Flash-Lite or GLM-5.3-Flash?
GLM-5.3-Flash leads on Arena Text, 1475 Elo to 1455 Elo; GLM-5.3-Flash leads on GPQA Diamond, 90.2% to 83.3%; GLM-5.3-Flash leads on FrontierMath Tiers 1-3 (v2), 55.8% to 26%. Scores are independent evaluations, not either vendor's launch figures.
Which has the larger context window, Gemini 3.5 Flash-Lite or GLM-5.3-Flash?
Both accept about 1.05M tokens of context (1,048,576 and 1,000,000).
Can I run Gemini 3.5 Flash-Lite or GLM-5.3-Flash myself?
GLM-5.3-Flash is released as open weights you can run yourself; Gemini 3.5 Flash-Lite is available through its provider's API only.
Related comparisons
- Claude Haiku 5.5 vs GLM-5.3-Flash
- Claude Sonnet 5 vs GLM-5.3-Flash
- DeepSeek-V4.1-Flash vs Gemini 3.5 Flash-Lite
- DeepSeek-V4.1-Flash vs GLM-5.3-Flash
- DeepSeek-V4-Pro vs GLM-5.3-Flash
- Gemini 3.1 Flash-Lite vs Gemini 3.5 Flash-Lite
- Gemini 3.5 Flash-Lite vs Solar Pro 4
- Gemini 3.5 Flash vs Gemini 3.5 Flash-Lite
- Gemini 3.7 Flash vs GLM-5.3-Flash
- Gemini 3.8 Flash vs GLM-5.3-Flash
Production evaluation
Choosing between Gemini 3.5 Flash-Lite and GLM-5.3-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