Nex AGI: Nex-N2.5-Pro
Nex-N2.5-Pro is a reasoning model from Nex AGI released on Sep 8, 2026. It reads text and images and writes text, with a 262K token context window and up to 236K tokens per reply.
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It costs $0.075 per million input tokens and $0.25 per million output tokens. Cached input bills at $0.015, 80% less than fresh input.
It supports tool calling, structured JSON output and prompt caching.
- Modalities
- In / out price
- $0.075 / $0.25 per 1M
- Context
- 262K
- Max output
- 236K
- Released
- Sep 8, 2026
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
Nex-N2.5-Pro pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $0.075 / 1M tokens | |
|---|---|---|
| Output | $0.25 / 1M tokens | |
| Cached input (read) | $0.015 / 1M tokens | 80% off input |
What Nex-N2.5-Pro costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call Nex-N2.5-Pro through an OpenAI compatible API.
- Tools
tools - Structured outputs
structured_outputs - Reasoning
reasoning - Temperature
temperature
Alternatives to Nex-N2.5-Pro
Models that take the same inputs and call tools, closest in price, cheaper ones first.
- 1M context
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by qwenFeb 23, 2026$0.065/M input tokens$0.26/M output tokens11 providers
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by googleApr 2, 2026$0.10/M input tokens$0.10/M output tokens2 providers
- 262K context
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by inclusionaiSep 8, 2026$0.06/M input tokens$0.18/M output tokens5 providers
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by z-aiDec 8, 2025$0.0218/M input tokens$0.2184/M output tokens6 providers
- Index 37.9
Reads text, images, audio and video. Tool calling, structured output, reasoning. Served by 17 providers.
by xiaomiSep 22, 20261.05M context$0.14/M input tokens$0.28/M output tokens17 providers
More from Nex AGI
- 262K context
Reads text and images. Structured output, reasoning.
by nex-agiSep 8, 2026$0.025/M input tokens$0.10/M output tokens
- 262K context
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by nex-agiJun 2, 2026$0.50/M input tokens$2.50/M output tokens
Nex-N2.5-Pro questions
How much does the Nex-N2.5-Pro API cost?
$0.075 per million input tokens and $0.25 per million output tokens, with cached input at $0.015. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of Nex-N2.5-Pro?
262,144 tokens of input, and it can write up to 235,929 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Does Nex-N2.5-Pro support tool calling?
Yes. It accepts tool definitions and can return JSON that matches a schema, which is what an agent needs to call your APIs.
Is Nex-N2.5-Pro open source?
No. Nex AGI serves it through an API only, so you cannot download the weights or host it yourself.
When was Nex-N2.5-Pro released?
Sep 8, 2026.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on Nex-N2.5-Pro?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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