Cohere Rerank 3.5 on Vercel AI Gateway

Name: Cohere Rerank 3.5 on Vercel AI Gateway
Brand: Cohere

Rerank · Cohere

Serverless

Last refreshed 2026-05-22. Next refresh: weekly.

Why use Cohere Rerank 3.5 on Vercel AI Gateway?

Vercel AI Gateway offers Cohere Rerank 3.5 with competitive pricing. Vercel AI Gateway is a unified AI proxy providing a single OpenAI-compatible API endpoint to 275+ models from 25+ providers including Anthropic, OpenAI, Google, Meta, Mistral, DeepSeek, xAI, Alibaba, Amazon, ByteDance, Cohere, MiniMax, MoonshotAI, KwaiPilot, Black Forest Labs, Recraft, Voyage AI, NVIDIA, and more.

Compare Cohere Rerank 3.5 across 2 providers to find the best fit for your use case

Input / 1M

Output / 1M

Cache

Not sourced

Batch

Not sourced

Setup recipe

Python + curl

Install

pip install openai

Auth

export AI_GATEWAY_API_KEY=...

Call

import os
from openai import OpenAI
client = OpenAI(
    api_key=os.environ["AI_GATEWAY_API_KEY"],

Model ID

cohere/rerank-v3.5

Request example

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["AI_GATEWAY_API_KEY"],
    base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
    model="cohere/rerank-v3.5",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Gotchas

Use provider model ID "cohere/rerank-v3.5", not the LLMReference slug "cohere-rerank-3-5".
creator/model-name e.g. kwaipilot/kat-coder-pro-v2
The examples expect AI_GATEWAY_API_KEY; rename it only if your application config maps the new variable.