Nex-N2.5 is an agentic model built to turn goals into working, verified outcomes. Its core strength is agentic coding within a visual feedback loop: it can explore codebases, implement multi-file...
Model details →Nex AGI: Nex-N2.5-Pro (free) vs OpenAI: GPT-5.4 Nano (batch)
Nex AGI: Nex-N2.5-Pro (free) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
GPT-5.4 nano is the most lightweight and cost-efficient variant of the GPT-5.4 family, optimized for speed-critical and high-volume tasks. It supports text and image inputs and is designed for low-latency...
Model details →Side-by-side comparison
| Capability | Nex AGI: Nex-N2.5-Pro (free) | OpenAI: GPT-5.4 Nano (batch) | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 400K | 🏆 OpenAI: GPT-5.4 Nano (batch) |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.00 | $0.10 | 🏆 Nex AGI: Nex-N2.5-Pro (free) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.00 | $0.63 | 🏆 Nex AGI: Nex-N2.5-Pro (free) |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Nex AGI: Nex-N2.5-Pro (free) better than OpenAI: GPT-5.4 Nano (batch)?
Nex AGI: Nex-N2.5-Pro (free) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Nex AGI: Nex-N2.5-Pro (free) and OpenAI: GPT-5.4 Nano (batch)?
Input: $0.00 vs $0.10 per 1M tokens. Output: $0.00 vs $0.63 per 1M tokens.
What context windows do Nex AGI: Nex-N2.5-Pro (free) and OpenAI: GPT-5.4 Nano (batch) support?
Nex AGI: Nex-N2.5-Pro (free) supports up to 262K tokens. OpenAI: GPT-5.4 Nano (batch) supports up to 400K tokens.
Do both Nex AGI: Nex-N2.5-Pro (free) and OpenAI: GPT-5.4 Nano (batch) support tool calling?
Nex AGI: Nex-N2.5-Pro (free): yes. OpenAI: GPT-5.4 Nano (batch): yes.