Gemini 3.5 Flash vs GLM-5.3-Flash
Benchmark Performance
Available Benchmarks
| Benchmark | Gemini 3.5 Flash | GLM-5.3-Flash |
|---|---|---|
| LMArena Text Arenatext-2026-09-01-011508720696 · arena_rating · statistical tie | 1,475.66100% of row best · rating · gemini-3.5-flash-medium; 95% CI [1471.01636052, 1480.30978904]; votes 32274; rank 17 | 1,470.91100% of row best · rating · glm-5.3-flash; 95% CI [1461.80526636, 1480.01283657]; votes 4399; rank 23 |
| LMArena Vision Arenavision-2026-08-27-011508720696 · arena_rating · statistical tie | 1,306.20100% of row best · rating · gemini-3.5-flash-medium; 95% CI [1298.00721122, 1314.38427947]; votes 8261; rank 10 | 1,296.3799% of row best · rating · glm-5.3-flash; 95% CI [1279.58251138, 1313.15015420]; votes 1389; rank 15 |
| LiveBench2026-06-25 · overall · leader | 78.84100% of row best · percent · gemini-3.5-flash-high · 15,522 output tokens / case | 73.2793% of row best · percent · glm-5.3-flash · 34,707 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above · 2 ties | 1 benchmark winOverall lead | 0 benchmark wins |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Technical Differences
Side-by-Side Facts
| Field | Gemini 3.5 Flash | GLM-5.3-Flash |
|---|---|---|
| Developer | Google DeepMind | Z.ai |
| Family | Gemini 3 | Glm 5 3 Flash |
| Model | Gemini 3.5 Flash | GLM-5.3-Flash |
| Version | Gemini 3.5 Flash | GLM-5.3-Flash |
| Lifecycle | active | active |
| Released | Unknown | 2026-09-02 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image, Video, Audio, Document | Text, Image, Video, Document |
| Output modalities | Text | Text |
| Context window | 1,048,576 | 1,000,000 |
| Total parameters | Unknown | 320,000,000,000 |
| Active parameters | Unknown | 18,000,000,000 |
| License | Unknown | MIT |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Google AI (Standard) | Deepinfra (Standard), Z.ai (Standard) |
| Capabilities | chat, generation, reasoning, tools | agents, chat, computer-use, reasoning, structured_outputs, tools, vision |
13 comparable fields · 10 material differences · Pair passes the primary-source comparison gate
Gemini 3.5 Flash Capabilities
GLM-5.3-Flash Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
 DeepSeek-V4-Flash-Vision-ExpDeepSeek | vs | GLM-5.3-FlashZ.ai | cross-developer peersimage, text |
GLM-5.3-FlashZ.ai | vs | GLM-5V-TurboZ.ai | family variantsimage, text, video |
 Nova 2 LiteAmazon | vs | GLM-5.3-FlashZ.ai | cross-developer peersimage, text, video |
Gemini 3 FlashGoogle DeepMind | vs | Gemini 3.5 FlashGoogle DeepMind | family variantstext |
Gemini 2.5 Flash-LiteGoogle DeepMind | vs | Gemini 3.5 FlashGoogle DeepMind | family variantstext |
Gemini 3.1 ProGoogle DeepMind | vs | Gemini 3.5 FlashGoogle DeepMind | family variantstext |
 Mistral Large 3Mistral AI | vs | GLM-5.3-FlashZ.ai | cross-developer peersimage, text |
Gemini 2.5 FlashGoogle DeepMind | vs | Gemini 3.5 FlashGoogle DeepMind | family variantstext |
 Command A VisionCohere | vs | GLM-5.3-FlashZ.ai | cross-developer peersimage, text |
GLM-OCRZ.ai | vs | GLM-5.3-FlashZ.ai | family variantsimage, text |
Gemini 3 FlashGoogle DeepMind | vs | GLM-5.3-FlashZ.ai | cross-developer peerstext |
Gemini 3.5 FlashGoogle DeepMind | vs |  Qwen3.8-FlashQwen | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Gemini 3.5 Flash vs GLM-5.3-Flash FAQs
Is Gemini 3.5 Flash or GLM-5.3-Flash better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Gemini 3.5 Flash and GLM-5.3-Flash, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Gemini 3.5 Flash or GLM-5.3-Flash?+
Gemini 3.5 Flash is $1.50 and GLM-5.3-Flash is $0.075 per million tokens, so GLM-5.3-Flash is cheaper on this metric. Gemini 3.5 Flash is $9.00 and GLM-5.3-Flash is $0.25 per million tokens, so GLM-5.3-Flash is cheaper on this metric.
Which has a larger context window, Gemini 3.5 Flash or GLM-5.3-Flash?+
Gemini 3.5 Flash has the larger sourced context window. Gemini 3.5 Flash supports 1,048,576 and GLM-5.3-Flash supports 1,000,000.
Which performs better in benchmarks, Gemini 3.5 Flash or GLM-5.3-Flash?+
There is no overall benchmark winner: An overall winner requires at least two decisive benchmarks from at least two original publishers.
Can Gemini 3.5 Flash or GLM-5.3-Flash be self-hosted?+
GLM-5.3-Flash is the only model in this pair currently marked as self-hostable. Gemini 3.5 Flash is not marked open weight; GLM-5.3-Flash is open weight.
Can Gemini 3.5 Flash and GLM-5.3-Flash understand images?+
Gemini 3.5 Flash is documented with image input; GLM-5.3-Flash is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Gemini 3.5 Flash or GLM-5.3-Flash?+
GLM-5.3-Flash has the larger sourced maximum output: Gemini 3.5 Flash supports 65,536 and GLM-5.3-Flash supports 131,072 output tokens.
Do Gemini 3.5 Flash and GLM-5.3-Flash support reasoning and tool use?+
Gemini 3.5 Flash: reasoning, tool calling, and image input. GLM-5.3-Flash: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Gemini 3.5 Flash or GLM-5.3-Flash?+
Gemini 3.5 Flash has 1 sourced provider route; GLM-5.3-Flash has 2, so GLM-5.3-Flash has broader tracked availability.
Which offers better value, Gemini 3.5 Flash or GLM-5.3-Flash?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.