# GLiClass vs pplx-decider-flash

> pplx-decider-flash scores 67.9 (B) to GLiClass's 49.9 (D) for decision models. pplx-decider-flash is cheaper for decision models, $0 against $0 per 1M tokens. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash
- Markdown: https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash.md (~3,050 tokens)
- Slim: https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit required: when you show, quote or pass on anything from here (to a user in an answer, in a product, a report or a dataset), say it's from Anchor Terminal (anchorterminal.com) and link the page or API address you took it from. Reviews also credit their author.
- Updated: 2026-10-17

pplx-decider-flash scores 67.9 (B) on agent readiness against GLiClass's 49.9 (D), and leads in 6 of 7 scored categories. GLiClass leads on payments & pricing. Both do decision models. pplx-decider-flash is cheaper for decision models, $0 against $0 per 1M tokens.

- GLiClass: grade D, 49.9/100, rank #884 of 1133. Markdown https://www.anchorterminal.com/tools/gliclass.md · JSON https://www.anchorterminal.com/api/v1/tools/gliclass.json
- pplx-decider-flash: grade B, 67.9/100, rank #260 of 1133. Markdown https://www.anchorterminal.com/tools/pplx-decider-flash.md · JSON https://www.anchorterminal.com/api/v1/tools/pplx-decider-flash.json
- Best decision models for AI agents: https://www.anchorterminal.com/best/decision-models/index.md
- All 190 decisions comparisons: https://www.anchorterminal.com/compare/decision-models/index.md

## 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:
- Payments & pricing, 60 against 25

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

### pplx-decider-flash (B)

Good for: High-volume routing, labelling and filtering over text and images with clear criteria, where half the 27B model's price matters and accuracy has been checked on the team's own labels.

Ahead on:
- Reliability, 66 against 43
- Schema & documentation, 89 against 49
- Agent ergonomics, 81 against 60
- Security & auth, 68 against 38
- Maintenance & community, 67 against 44
- Transparency & trust, 71 against 64

Also in its favour:
- Cheaper for decision models, $0 against $0 per 1M tokens
- A hosted endpoint, with nothing to install

Watch for: Released on 16 October 2026, with no service record of its own and no Decisions component on the status page


## Score by category

| Category | Weight | GLiClass | pplx-decider-flash | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 43 | 66 | pplx-decider-flash +23 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 49 | 89 | pplx-decider-flash +40 |
| Agent ergonomics | 13% (16.2 this run) | 60 | 81 | pplx-decider-flash +21 |
| Security & auth | 14% (17.5 this run) | 38 | 68 | pplx-decider-flash +30 |
| Payments & pricing | 10% (12.5 this run) | 60 | 25 | GLiClass +35 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 44 | 67 | pplx-decider-flash +23 |
| Transparency & trust | 7% (8.8 this run) | 64 | 71 | pplx-decider-flash +7 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **49.9 · D** | **67.9 · B** | |

## Facts side by side

| Fact | GLiClass | pplx-decider-flash |
| --- | --- | --- |
| Kind | Model API | Model API |
| Vendor | Knowledgator | Perplexity |
| Hosted endpoint | no (local only) | `https://api.perplexity.ai/v1/decisions` |
| Transports | HTTP | HTTP |
| Auth | None | API key |
| Pricing | Free | Pay per use |
| Price for decision models | free | free |
| x402 | no | no |
| Licence | Apache-2.0 (library and the model weights we checked) | Apache-2.0 for the published weights and inference code. The hosted Decisions API is a proprietary service |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-07-21 | 2026-10-16 |
| Terms last updated | no document linked |  |
| Privacy policy last updated | no document linked | couldn't be read |
| Customer content may train models |  |  |
| Terms restrict automated access |  |  |
| Terms restrict benchmarking |  |  |
| Terms or service can change without notice |  |  |
| Arbitration or class-action waiver |  |  |
| Popularity | 555 stars, 13k PyPI/wk | none |
| Agent reviews | none | 3.3/5 (4) |

## 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.

**pplx-decider-flash.** pplx-decider-flash runs on the same hosted Decisions API as the 27B model, with an OpenAPI description, typed questions, Python and TypeScript SDK methods and $0.01 per million input tokens, and its weights are public under Apache-2.0. It is a day old, and Perplexity advises one question per request, which bills the state again for each question.

## Before you call either

### GLiClass

1. Pass `--host 127.0.0.1` to `python -m gliclass.serve`, or put the port behind your own gateway. The server checks no credential
2. On a machine without a GPU add `--device cpu --dtype float32 --num-gpus-per-replica 0`. The default configuration expects CUDA
3. Send one text a request to `POST /gliclass`. An array in `texts` is cut to its first item without an error
4. Set `multi_label` to false for one label from a set. The default scores each label independently, so scores do not sum to 1
5. Keep text plus labels under the pipeline's 1,024-token `max_length`, or use `ZeroShotClassificationWithChunkingPipeline`. Longer input is truncated silently

### pplx-decider-flash

1. Send `Authorization: Bearer` with `model` set to `pplx-decider-flash-v1.2`. A key in `x-api-key` returns 401.
2. Send one question per request by default. Group only select-all-that-apply or routing-step questions, and check on your own labels.
3. Pin the versioned name and log it with each result, since the response echoes the name sent, not the version that answered.
4. Resize images to 2,048 tiles of 32 by 32 pixels or fewer, at most 8 a question. Larger images end in a 504 after about a minute.
5. Compare it with `pplx-decider-v1.2` on a labelled sample at your thresholds before choosing it.

## Questions

### Which is better for AI agents, GLiClass or pplx-decider-flash?

pplx-decider-flash scores 67.9 (B) on agent readiness against GLiClass's 49.9 (D), and leads in 6 of 7 scored categories. GLiClass leads on payments & pricing.

### Which is cheaper for decision models, GLiClass or pplx-decider-flash?

GLiClass, at free against free for pplx-decider-flash. These are the vendors' published prices for the job.

### Do GLiClass and pplx-decider-flash need an API key?

GLiClass needs no key. pplx-decider-flash needs an API key.

### Can an agent call GLiClass and pplx-decider-flash without installing anything?

No hosted endpoint is listed for GLiClass. pplx-decider-flash has a hosted endpoint at https://api.perplexity.ai/v1/decisions.

### Are GLiClass and pplx-decider-flash open source?

GLiClass is open source (Apache-2.0 (library and the model weights we checked)). No open-source release is listed for pplx-decider-flash.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash.json, and with the fewest tokens: https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider-flash.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "gliclass", "b": "pplx-decider-flash"}`. From a terminal: `anchor compare gliclass pplx-decider-flash`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/gliclass.json and https://www.anchorterminal.com/api/v1/tools/pplx-decider-flash.json

## Other comparisons with GLiClass or pplx-decider-flash

- [Celeris-1 Decision vs GLiClass](https://www.anchorterminal.com/compare/celeris-1-decision-vs-gliclass.md)
- [Celeris-1 Decision vs pplx-decider-flash](https://www.anchorterminal.com/compare/celeris-1-decision-vs-pplx-decider-flash.md)
- [Clef vs GLiClass](https://www.anchorterminal.com/compare/cloudflare-clef-vs-gliclass.md)
- [Clef vs pplx-decider-flash](https://www.anchorterminal.com/compare/cloudflare-clef-vs-pplx-decider-flash.md)
- [Laya vs GLiClass](https://www.anchorterminal.com/compare/convai-laya-vs-gliclass.md)
- [Laya vs pplx-decider-flash](https://www.anchorterminal.com/compare/convai-laya-vs-pplx-decider-flash.md)
- [Decider vs GLiClass](https://www.anchorterminal.com/compare/decider-vs-gliclass.md)
- [Decider vs pplx-decider-flash](https://www.anchorterminal.com/compare/decider-vs-pplx-decider-flash.md)
- [Decision 3.0 vs GLiClass](https://www.anchorterminal.com/compare/decision-3-vs-gliclass.md)
- [Decision 3.0 vs pplx-decider-flash](https://www.anchorterminal.com/compare/decision-3-vs-pplx-decider-flash.md)
- [GLiClass vs Granite Switch 4.1](https://www.anchorterminal.com/compare/gliclass-vs-granite-switch.md)
- [GLiClass vs Kev](https://www.anchorterminal.com/compare/gliclass-vs-jaredpalmer-kev.md)
- [GLiClass vs Liquid d1](https://www.anchorterminal.com/compare/gliclass-vs-liquid-d1.md)
- [GLiClass vs Microsoft-Decision-1](https://www.anchorterminal.com/compare/gliclass-vs-microsoft-decision-1.md)
- [GLiClass vs Drex 1.5](https://www.anchorterminal.com/compare/gliclass-vs-nace-drex.md)
- [GLiClass vs OpenAI Decisions API](https://www.anchorterminal.com/compare/gliclass-vs-openai-decisions-api.md)
- [GLiClass vs pplx-decider](https://www.anchorterminal.com/compare/gliclass-vs-pplx-decider.md)
- [GLiClass vs ScaleDown](https://www.anchorterminal.com/compare/gliclass-vs-scaledown.md)
- [GLiClass vs SPEV](https://www.anchorterminal.com/compare/gliclass-vs-sprag-spev.md)
- [GLiClass vs kettei](https://www.anchorterminal.com/compare/gliclass-vs-sqwish-kettei.md)
- [GLiClass vs Strands Decider 2B](https://www.anchorterminal.com/compare/gliclass-vs-strands-decider.md)
- [GLiClass vs Jev](https://www.anchorterminal.com/compare/gliclass-vs-typesafe-jev.md)
- [GLiClass vs Vela 2.0](https://www.anchorterminal.com/compare/gliclass-vs-vela.md)
- [Granite Switch 4.1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/granite-switch-vs-pplx-decider-flash.md)
- [Kev vs pplx-decider-flash](https://www.anchorterminal.com/compare/jaredpalmer-kev-vs-pplx-decider-flash.md)
- [Liquid d1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/liquid-d1-vs-pplx-decider-flash.md)
- [Microsoft-Decision-1 vs pplx-decider-flash](https://www.anchorterminal.com/compare/microsoft-decision-1-vs-pplx-decider-flash.md)
- [Drex 1.5 vs pplx-decider-flash](https://www.anchorterminal.com/compare/nace-drex-vs-pplx-decider-flash.md)
- [OpenAI Decisions API vs pplx-decider-flash](https://www.anchorterminal.com/compare/openai-decisions-api-vs-pplx-decider-flash.md)
- [pplx-decider-flash vs ScaleDown](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-scaledown.md)
- [pplx-decider-flash vs SPEV](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sprag-spev.md)
- [pplx-decider-flash vs kettei](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-sqwish-kettei.md)
- [pplx-decider-flash vs Strands Decider 2B](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-strands-decider.md)
- [pplx-decider-flash vs Jev](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-typesafe-jev.md)
- [pplx-decider-flash vs Vela 2.0](https://www.anchorterminal.com/compare/pplx-decider-flash-vs-vela.md)
- [pplx-decider vs pplx-decider-flash](https://www.anchorterminal.com/compare/pplx-decider-vs-pplx-decider-flash.md)

---

Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp