Head to head · Inference decision · October 2026 research run
GLiClass vs Liquid d1
GLiClass scores 49.9 (D) on agent readiness against Liquid d1's 43.5 (E), and leads in 4 of 7 scored categories. Liquid d1 leads on schema & documentation and maintenance & community. Both do inference decision.
Which one, for what
GLiClass D
Good for Topic, intent and sentiment routing over a known label set on the owner's own CPU or GPU, where many labels must be scored at once.
Ahead on
- Reliability, 43 against 21
- Payments & pricing, 60 against 27
- Transparency & trust, 64 against 54
Also in its favour
- No key needed to call it
- Open source
Watch for
No calibration evidence. The cards report F1 only, and the docs tell users to calibrate thresholds on their own traffic
Good for Classification, routing, yes or no gates and rubric scoring over text and images at a low per-token price, or on your own hardware with d1-3B where data can't leave.
Ahead on
- Schema & documentation, 59 against 49
- Maintenance & community, 60 against 44
Also in its favour
- A hosted endpoint, with nothing to install
Watch for
The terms of 30 September 2026 allow Liquid to train on API content, with no opt-out or zero-retention option found
Score by category
| Category | Weight this run | GLiClass | Liquid d1 | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 43 | 21 | GLiClass +22 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 49 | 59 | Liquid d1 +10 |
| Agent ergonomics | 13%16.2 | 60 | 63 | Liquid d1 +3 |
| Security & auth | 14%17.5 | 38 | 35 | GLiClass +3 |
| Payments & pricing | 10%12.5 | 60 | 27 | GLiClass +33 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 44 | 60 | Liquid d1 +16 |
| Transparency & trust | 7%8.8 | 64 | 54 | GLiClass +10 |
| Negative events | ≤15 | 0 | 0 | |
| Total | 49.9 · D | 43.5 · E |
Facts side by side
| Fact | GLiClass | Liquid d1 |
|---|---|---|
| Kind | Model API | Model API |
| Vendor | Knowledgator | Liquid AI |
| Hosted endpoint | no (local only) | https://api.liquid.ai/decisions/v1/systemone |
| Transports | HTTP | HTTP |
| Auth | None | API key |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 (library and the model weights we checked) | The hosted d1 model is proprietary under Liquid AI's terms of service. The d1-3B and d1-omni-600M weights and model code are under the LFM Open Licence v1.0, which is based on Apache-2.0 and conditions commercial use on annual revenue under $10 million. Training code and data aren't published |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-07-21 | 2026-10-07 |
| Terms last updated | no document linked | 2026-09-30 |
| Privacy policy last updated | no document linked | 2026-09-30 |
| Customer content may train models | yes | |
| Terms restrict automated access | not found in the text | |
| Terms restrict benchmarking | not found in the text | |
| Terms or service can change without notice | not found in the text | |
| Arbitration or class-action waiver | not found in the text | |
| Popularity | 555 stars, 13k PyPI/wk | none |
Verdicts
GLiClass
An Apache-2.0 classifier that scores a whole label set in one encoder pass on the owner's hardware, with single-label, multi-label, hierarchical and few-shot modes. It returns label scores with no calibration claim, the bundled server has no authentication, and the last three test runs on the main branch, on 24 September 2026, failed.
Liquid d1
The hosted API costs $0.04 per million input tokens and takes TypeSafe's System One request, and the d1-3B weights run locally through Transformers or llama.cpp. Liquid's terms allow it to train on API content, and no status page, rate limits or error reference were found. The family launched between 22 September and 7 October 2026.
Before you call either
GLiClass
- Pass
--host 127.0.0.1topython -m gliclass.serve, or put the port behind your own gateway. The server checks no credential - On a machine without a GPU add
--device cpu --dtype float32 --num-gpus-per-replica 0. The default configuration expects CUDA - Send one text a request to
POST /gliclass. An array intextsis cut to its first item without an error - Set
multi_labelto false for one label from a set. The default scores each label independently, so scores do not sum to 1 - Keep text plus labels under the pipeline's 1,024-token
max_length, or useZeroShotClassificationWithChunkingPipeline. Longer input is truncated silently
Liquid d1
- POST to https://api.liquid.ai/decisions/v1/systemone with a
liquid_key as a Bearer header. This is not a chat-completions endpoint - Use
d1for images.d1:freeis text-only and answers that it does not accept images - Send images as Base64 data URLs in
images, at most 8, with the whole JSON body under 4.5 MB. Remote image URLs are refused - Budget tokens per question. Each question is billed as its own prompt, with its text and every image counted again
- Don't send confidential content to the hosted API, since the terms allow training on it. Run d1-3B locally for that data
Questions
Which is better for AI agents, GLiClass or Liquid d1?
GLiClass scores 49.9 (D) on agent readiness against Liquid d1's 43.5 (E), and leads in 4 of 7 scored categories. Liquid d1 leads on schema & documentation and maintenance & community.
Do GLiClass and Liquid d1 need an API key?
GLiClass needs no key. Liquid d1 needs an API key.
Can an agent call GLiClass and Liquid d1 without installing anything?
No hosted endpoint is listed for GLiClass. Liquid d1 has a hosted endpoint at https://api.liquid.ai/decisions/v1/systemone.
Are GLiClass and Liquid d1 open source?
GLiClass is open source (Apache-2.0 (library and the model weights we checked)). No open-source release is listed for Liquid d1.
Other comparisons with GLiClass or Liquid d1
- Clef vs GLiClass
- Clef vs Liquid d1
- Laya vs GLiClass
- Laya vs Liquid d1
- Decider vs GLiClass
- Decider vs Liquid d1
- GLiClass vs Kev
- GLiClass vs OpenAI Decisions API
- GLiClass vs Strands Decider 2B
- GLiClass vs Jev
- GLiClass vs Vela 2.0
- Kev vs Liquid d1
- Liquid d1 vs OpenAI Decisions API
- Liquid d1 vs Strands Decider 2B
- Liquid d1 vs Jev
- Liquid d1 vs Vela 2.0
Machine-readable
- This page as Markdown
/compare/gliclass-vs-liquid-d1.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/gliclass.json·/api/v1/tools/liquid-d1.json - From a terminal
anchor compare gliclass liquid-d1(the CLI) - Over MCP
compare_tools {"a": "gliclass", "b": "liquid-d1"}at/mcp, no key