# Perplexity Decider v1 27B Perplexity · Open Weight · bench-align-v5 > Every figure below is reproduced as its upstream source published it: nothing is modelled, estimated, interpolated or converted. `Unavailable` means no source published the value — it is never a zero. Each value carries its evidence state and the date it was observed. Page: https://modelscale.dev/models/pplx-decider-v1-27b JSON: https://modelscale.dev/api/model/pplx-decider-v1-27b ## Facts | Field | Value | Evidence | | --- | --- | --- | | Canonical id | `pplx-decider-v1-27b` | — | | Overall score | Unavailable | Unavailable · source benchlm:models | | Context window | 262K tokens | Observed 2026-10-23 · source benchlm:models | | Release date | 2026-10-01 | Observed 2026-10-23 · source benchlm:models | | Access type | Open Weight | — | | Blended $/1M (75% input / 25% output) | $0.015 | Derived from the input and output rates below | ## Capability evidence Seven axes from the ranking source. An axis the source did not score is unavailable, not zero. | Axis | Score | Evidence | | --- | --- | --- | | Agentic | Unavailable | Unavailable · source benchlm:models | | Coding | Unavailable | Unavailable · source benchlm:models | | Knowledge | Unavailable | Unavailable · source benchlm:models | | Reasoning | Unavailable | Unavailable · source benchlm:models | | Multimodal & Grounded | Unavailable | Unavailable · source benchlm:models | | Instruction Following | Unavailable | Unavailable · source benchlm:models | | Math | Unavailable | Unavailable · source benchlm:models | ## Runtime service evidence Measured values with the date they were observed. Nothing is inferred from a sibling model or a provider claim. Regional or per-endpoint measurements appear only when the API supplies them; none are modelled. | Measurement | Value | Observed | Last good | Evidence | | --- | --- | --- | --- | --- | | Time to first token | Unavailable | Unavailable | Unavailable | Unavailable · source benchlm:speed | | Throughput | Unavailable | Unavailable | Unavailable | Unavailable · source benchlm:speed | ## Endpoint and price matrix Every published price component, including cache reads and writes. | Component | USD | Evidence | | --- | --- | --- | | Input / 1M tokens | $0.02 | Observed 2026-10-23 · source benchlm:pricing | | Output / 1M tokens | $0.00 | Observed 2026-10-23 · source benchlm:pricing | | Cache read / 1M tokens | Unavailable | Unavailable · source benchlm:pricing | | Cache write / 1M tokens | Unavailable | Unavailable · source openrouter:pricing | | Blended / 1M (75% input / 25% output) | $0.015 | Derived — from the input and output rates above; it has no source record of its own | | Cost per successful task (LiveBench) | Unavailable | Fetch failed · source livebench:table | **Self-hosted listing.** Perplexity lists $0.02 per million input tokens for pplx-decider-v1-27b, free output tokens, and no per-request fee. State, questions, and images all count toward input usage. This is a typed-decision endpoint, so compare cost per completed decision as well as the token rate. Open weights are separately available under Apache 2.0; these prices are for the hosted Perplexity API, not local GPU costs. Since October 16, 2026, requests that name pplx-decider-v1-27b run pplx-decider-v1.2 and bill at $0.02. The rates above are a hosted price matched from another provider, not a first-party list price. ## Workload-aware monthly cost example 10 conversations per day × 8 messages × 22 active days, 1200 input and 400 output tokens per message, no cache. Derived here from the published rates above by this site's own calculator — not a figure any source published. | Field | Value | | --- | --- | | Modelled monthly cost | $0.0422 | | Modelled tokens | 2.82M | ## Benchmark record 12 matched benchmark rows with their published value, unit, and provenance. ### external | Benchmark | Value | Tasks | Difficulty | Provenance | | --- | --- | --- | --- | --- | | WinoGrande (Perplexity panel) | 83.30 | Ambiguous-reference resolution | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | FinancialPhraseBank (Perplexity panel) | 84.18 | Financial sentiment classification | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | RAGTruth (Perplexity panel) | 88.80 | Unsupported-claim detection | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | JudgeBench (Perplexity panel) | 78.29 | Response-pair judgment | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | BBH (Perplexity panel) | 82.80 | Challenging reasoning tasks | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | JevBench public hard (Perplexity panel) | 70.30 | Public-hard decision accuracy | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | TabFact (Perplexity panel) | 90.60 | Table-based fact verification | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | ContractNLI (Perplexity panel) | 80.78 | Contract hypothesis classification | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | Circa (Perplexity panel) | 89.20 | Indirect yes/no answer interpretation | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | Belebele (Perplexity panel) | 94.00 | Passage comprehension | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | TruthfulQA binary (Perplexity panel) | 85.40 | Binary truthfulness classification | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | | Perplexity Decision Panel | 85.71 | 11 decision task families | Depends on the sampled tasks and label mapping | [Perplexity Decider v1 27B model card](https://huggingface.co/perplexity-ai/pplx-decider-v1-27b/blob/9ce1abcf1f00209405376b5bcc81225c8f8cf514/README.md) | ## Lifecycle and limitations log Lifecycle events the source associates with this model. | Event | Type | Confirmation | Announced | Effective | Replacement | Source | | --- | --- | --- | --- | --- | --- | --- | | Perplexity Decider v1 27B | Release | confirmed | Unavailable | 2026-10-01 | — | [Perplexity Developers launch announcement](https://x.com/perplexitydevs/status/2105725598882832414) | ## What this profile does not claim Values are reproduced exactly as their sources published them, in the units those sources declared; none are converted, interpolated, or averaged across providers. Any field marked unavailable was attempted and not returned. Last attempted fetch for this model's score: 2026-10-23 13:17 UTC.