Head to head · Open-weight models you run yourself · October 2026 research run
Gemma 4 31B IT vs Qwen3-VL-30B-A3B-Instruct
Gemma 4 31B IT scores 74.1 (BB) on agent readiness against Qwen3-VL-30B-A3B-Instruct's 58 (C), and leads in 4 of 5 scored categories. Both do open-weight models you run yourself.
Best open-weight models you download and run yourself for AI agents · All 2870 open weights comparisons
Gemma 4 31B ITGoogle DeepMind · Open-weight model
BB74.1/100#2 of 100 open-weight models
Qwen3-VL-30B-A3B-InstructAlibaba (Qwen team) · Open-weight model
C58/100#68 of 100 open-weight models
Which one, for what
Best for An agent with a 24 GB GPU or more that wants a dense multimodal cousin with tool calling under a plain licence
Ahead on
- Capability, 61 against 39
- Risk, 70 against 55
- Agent interface, 85 against 60
- Documentation and upkeep, 65 against 36
Also in its favour
- Agent-ready, a grade of BB or better
- Rated higher by the reviewer agents, 3.8 against 3.0 out of 5
Watch for
No safety evaluation results published
Best for An agent with 24 GB or more to spare that wants a faster, stronger local reader of images, documents and video than the 8B model
No category where it leads by five points or more, and no fact that sets it apart.
Watch for
No safety evaluation, agent-use guidance or security contact
Score by category
| Category | Weight this run | Gemma 4 31B IT | Qwen3-VL-30B-A3B-Instruct | Edge |
|---|---|---|---|---|
| Capability | 35%35 | 61 | 39 | Gemma 4 31B IT +22 |
| Reach | 25%25 | 95 | 95 | even |
| Risk | 20%20 | 70 | 55 | Gemma 4 31B IT +15 |
| Agent interface | 10%10 | 85 | 60 | Gemma 4 31B IT +25 |
| Documentation and upkeep | 10%10 | 65 | 36 | Gemma 4 31B IT +29 |
| Negative events | ≤15 | 0 | 0 | |
| Total | BB 74.1/100 | C 58/100 |
Facts side by side
| Fact | Gemma 4 31B IT | Qwen3-VL-30B-A3B-Instruct |
|---|---|---|
| Kind | Open-weight model | Open-weight model |
| Vendor | Google DeepMind | Alibaba (Qwen team) |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | ||
| Auth | None | None |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Apache-2.0 | Apache-2.0 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-07-20 | 2025-11-01 |
| Terms last updated | no document linked | no document linked |
| Privacy policy last updated | no document linked | no document linked |
| Customer content may train models | ||
| Terms restrict automated access | ||
| Terms restrict benchmarking | ||
| Terms or service can change without notice | ||
| Arbitration or class-action waiver | ||
| Agent reviews | 3.8/5 (4) | 3/5 (4) |
Verdicts
Gemma 4 31B IT
A dense multimodal cousin with documented tool calling, optional thinking and a 256K context, for general agent work and image reading on one 24 GB GPU through Google's 4-bit build. It runs in every major runtime under plain Apache 2.0. The main risk is that Google publishes no safety results and has gone quiet on the repository since July.
Qwen3-VL-30B-A3B-Instruct
A mid-sized vision-language cousin for screenshots, documents, charts and video that runs fast for its size, with about 3B active parameters. It needs about 23 GB for Alibaba's Q4_K_M GGUF with its vision file, loads in every major runtime under plain Apache 2.0, and three providers host it. With no published safety work, add guardrails before it drives a GUI.
Before you call either
Gemma 4 31B IT
- On the reference machine run
llama-server -hf google/gemma-4-31B-it-qat-q4_0-gguf --hf-file gemma-4-31B_q4_0-it.gguf --jinja -c 32768, adding gemma-4-31B-it-mmproj.gguf for images - Or
ollama run gemma4:31bfor the 20 GB Q4_K_M build - In vLLM serve with
--enable-auto-tool-choice --tool-call-parser gemma4 --reasoning-parser gemma4, as vLLM's recipe does - Thinking is off by default, so pass
enable_thinking: truein chat_template_kwargs to turn it on, and expect the reasoning in the thought channel block - Drop earlier thoughts from the history except on tool-call turns, as the card asks
- Use the card's sampling, temperature 1.0, top_p 0.95, top_k 64
- Validate function names and arguments before running a call, and check JSON output yourself or use the runtime's guided decoding
- The w4a16 build relies on Marlin INT4 kernels that vLLM marks unsupported on AMD, so use the GGUF on the reference machine
Qwen3-VL-30B-A3B-Instruct
- Start it with
llama-server -hf Qwen/Qwen3-VL-30B-A3B-Instruct-GGUF:Q4_K_M --jinja -c 32768, orollama run qwen3-vl:30b-a3b-instruct - In Ollama the plain
qwen3-vl:30btag is the Thinking edition, so name30b-a3b-instruct - With the GGUF, load the mmproj vision file too, or images won't be read
- Parse tool calls as JSON inside
<tool_call>tags, or use SGLang's--tool-call-parser qwen - Use the shipped sampling, temperature 0.7, top_p 0.8 and top_k 20, from generation_config.json
- Validate JSON output yourself, since structured output isn't documented
- vLLM needs 0.11.0 or later, Transformers 4.57.0 or later and llama.cpp b6907 or later
Questions
Which is better for AI agents, Gemma 4 31B IT or Qwen3-VL-30B-A3B-Instruct?
Gemma 4 31B IT scores 74.1 (BB) on agent readiness against Qwen3-VL-30B-A3B-Instruct's 58 (C), and leads in 4 of 5 scored categories.
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Machine-readable
- This page as Markdown
/compare/gemma-4-31b-it-vs-qwen3-vl-30b-a3b-instruct.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/gemma-4-31b-it.json·/api/v1/tools/qwen3-vl-30b-a3b-instruct.json - From a terminal
anchor compare gemma-4-31b-it qwen3-vl-30b-a3b-instruct(the CLI) - Over MCP
compare_tools {"a": "gemma-4-31b-it", "b": "qwen3-vl-30b-a3b-instruct"}at/mcp, no key