VoyageAI by MongoDB: rerank-2.5-lite

voyageai/rerank-2.5-lite

rerank-2.5-lite is a reranker optimized for both latency and quality, delivering a 7.16% improvement in retrieval accuracy over Cohere Rerank v3.5 across 93 datasets. It also outperformed Cohere Rerank v3.5...

Modalities: text->rerank
Price: Free
Context: 32K
Released: Jul 27, 2026
Knowledge cutoff: —

Providers

Every request enters through InfAPI. One key calls every model in the catalog. Upstream groups, ratios, and tiers are not shown.

Endpoint	Input	Output	Context	Status
InfAPI	Free	Free	32K	Available

Input: Text
Output: Rerank
Tokenizer: Other
Max output: 28,800
Endpoint: Rerank

Pricing

Listed price for this model on this gateway. Token prices are per 1M tokens.

Item	Price	Unit
Inputprompt	$0	per 1M tokens
Outputcompletion	$0	per 1M tokens

API

The gateway speaks the OpenAI Chat Completions API. Point any compatible SDK at https://infapi.cc/v1 and send the model slug below.

Get your API key

Create a key on the keys page and set it as an environment variable: Keys

shell

export INFAPI_API_KEY=sk-...

Make your first request

Use voyageai/rerank-2.5-lite

Python

import requests

response = requests.post(
    "https://infapi.cc/v1/chat/completions",
    headers={
        "Authorization": "Bearer $INFAPI_API_KEY",
        "Content-Type": "application/json",
    },
    json={
        "model": "voyageai/rerank-2.5-lite",
        "messages": [
            {
                "role": "user",
                "content": "Introduce yourself in three sentences."
            }
        ]
    },
)
response.raise_for_status()
print(response.json()["choices"][0]["message"]["content"])

Endpoint

POST https://infapi.cc/v1/chat/completions

Authorization: Bearer $INFAPI_API_KEY

Using third-party SDKs

Point the OpenAI SDK at https://infapi.cc/v1 with $INFAPI_API_KEY. The HTTP samples above are the request shape this gateway accepts.

Python (OpenAI)

from openai import OpenAI

client = OpenAI(
    base_url="https://infapi.cc/v1",
    api_key="$INFAPI_API_KEY",
)

response = client.chat.completions.create(
    model="voyageai/rerank-2.5-lite",
    messages=[{"role": "user", "content": "Introduce yourself in three sentences."}],
)
print(response.choices[0].message.content)

TypeScript (OpenAI)

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://infapi.cc/v1",
  apiKey: "$INFAPI_API_KEY",
});

const response = await client.chat.completions.create({
  "model": "voyageai/rerank-2.5-lite",
  "messages": [
    {
      "role": "user",
      "content": "Introduce yourself in three sentences."
    }
  ]
});

console.log(response.choices[0]?.message?.content);

Supported parameters

This model does not publish a parameter list.

FAQ

What is this model?

rerank-2.5-lite is a reranker optimized for both latency and quality, delivering a 7.16% improvement in retrieval accuracy over Cohere Rerank v3.5 acr…

How much does it cost?

Free

What inputs and outputs does it support?

text->rerank

When was it released?

Jul 27, 2026

Try this model

Endpoint

Input

Output

Context

Status

InfAPI

Free

32K

Available

Item

Price

Unit

Inputprompt

per 1M tokens

Outputcompletion

per 1M tokens

API

The gateway speaks the OpenAI Chat Completions API. Point any compatible SDK at https://infapi.cc/v1 and send the model slug below.

Get your API key

Create a key on the keys page and set it as an environment variable: Keys

shell

export INFAPI_API_KEY=sk-...

Make your first request

Use voyageai/rerank-2.5-lite

Python

import requests

response = requests.post(
    "https://infapi.cc/v1/chat/completions",
    headers={
        "Authorization": "Bearer $INFAPI_API_KEY",
        "Content-Type": "application/json",
    },
    json={
        "model": "voyageai/rerank-2.5-lite",
        "messages": [
            {
                "role": "user",
                "content": "Introduce yourself in three sentences."
            }
        ]
    },
)
response.raise_for_status()
print(response.json()["choices"][0]["message"]["content"])

Endpoint

POST https://infapi.cc/v1/chat/completions

Authorization: Bearer $INFAPI_API_KEY

Using third-party SDKs

Point the OpenAI SDK at https://infapi.cc/v1 with $INFAPI_API_KEY. The HTTP samples above are the request shape this gateway accepts.

Python (OpenAI)

from openai import OpenAI

client = OpenAI(
    base_url="https://infapi.cc/v1",
    api_key="$INFAPI_API_KEY",
)

response = client.chat.completions.create(
    model="voyageai/rerank-2.5-lite",
    messages=[{"role": "user", "content": "Introduce yourself in three sentences."}],
)
print(response.choices[0].message.content)

TypeScript (OpenAI)

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://infapi.cc/v1",
  apiKey: "$INFAPI_API_KEY",
});

const response = await client.chat.completions.create({
  "model": "voyageai/rerank-2.5-lite",
  "messages": [
    {
      "role": "user",
      "content": "Introduce yourself in three sentences."
    }
  ]
});

console.log(response.choices[0]?.message?.content);

Supported parameters

This model does not publish a parameter list.