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 Nano
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-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...
Model details →Side-by-side comparison
| Capability | Nex AGI: Nex-N2.5-Pro (free) | OpenAI: GPT-5 Nano | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 262K | 400K | 🏆 OpenAI: GPT-5 Nano |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.00 | $0.05 | 🏆 Nex AGI: Nex-N2.5-Pro (free) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $0.00 | $0.40 | 🏆 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 Nano?
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 Nano?
Input: $0.00 vs $0.05 per 1M tokens. Output: $0.00 vs $0.40 per 1M tokens.
What context windows do Nex AGI: Nex-N2.5-Pro (free) and OpenAI: GPT-5 Nano support?
Nex AGI: Nex-N2.5-Pro (free) supports up to 262K tokens. OpenAI: GPT-5 Nano supports up to 400K tokens.
Do both Nex AGI: Nex-N2.5-Pro (free) and OpenAI: GPT-5 Nano support tool calling?
Nex AGI: Nex-N2.5-Pro (free): yes. OpenAI: GPT-5 Nano: yes.