// nex-agi

Nex-N2.5-Pro

nex-agi/nex-n2.5-pro

newreasoningtool callingimage inputprompt caching
OpenRouter + LiveBenchAll modelsFull leaderboard

Nex-N2.5-Pro costs $0.075 per 1M input tokens and $0.250 per 1M output tokens with a 262K-token context window.

A reasoning, tool-calling model from nex-agi, released Sep 8, 2026. LiveBench hasn't published a run for it, so this page carries measured price and specs only — no benchmark numbers.

Input / 1M
$0.075
Output / 1M
$0.250
Context
262K
LiveBench overall
Not evaluated

Specs and pricing

Input price

USD per 1M prompt tokens

$0.075
Output price

USD per 1M completion tokens, reasoning included

$0.250
Blended price

3:1 input:output — #42 cheapest of 343 listed models

$0.119
Cached input read

Blank means not priced separately — not free

$0.015
Cache write
Context window262,144 tokens
Max output235,929 tokens
Input modalitiestext, image
Tool callingYes
Extended reasoningYes
Knowledge cutoff
ListedSep 8, 2026

Also listed as nex-agi/nex-n2.5-pro:free (Free blended)— the same model at a different price or rate limit.

What Nex-N2.5-Pro costs to run

Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.

WorkloadPer month
Support chatbot

1.2K in / 400 out × 200K requests

$33.68/mo
RAG assistant

8K in / 600 out × 100K requests

$51.00/mo
Coding agent

40K in / 4K out × 20K requests

$46.40/mo
Document extraction

20K in / 1.5K out × 50K requests

$90.75/mo
Bulk classification

500 in / 20 out × 5M requests

$182.50/mo
Price your own workload

Compare Nex-N2.5-Pro with

Benchmarked models at a similar price.

Nex-N2.5-Pro FAQ

How much does Nex-N2.5-Pro cost?

Nex-N2.5-Pro lists at $0.075 per 1M input tokens and $0.250 per 1M output tokens, with cached input reads at $0.015 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $51.00 at list price.

What is the context window of Nex-N2.5-Pro?

Nex-N2.5-Pro accepts up to 262,144 tokens of context and can return up to 235,929 output tokens per response.

Does Nex-N2.5-Pro support tool calling?

Yes — Nex-N2.5-Pro supports tool (function) calling and exposes extended reasoning. It accepts text, image input.

How does Nex-N2.5-Pro score on benchmarks?

LiveBench has not published a run for Nex-N2.5-Pro yet. Until it does, compare it on price and specs, or run your own evaluation on your own tasks.

What is the API model ID for Nex-N2.5-Pro?

On OpenRouter the model ID is "nex-agi/nex-n2.5-pro". It was listed on Sep 8, 2026.

More from nex-agi

How these numbers are produced

  • Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
  • Scores and ranksLiveBench release 2026-06-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
  • Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.

Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.