Nex-N2.5-Pro vs Perceptron Mk1
Nex-N2.5-Pro costs 6.0x less per output token than Perceptron Mk1 ($0.25 vs $1.50 per million). Updated October 22, 2026; no benchmark has tested both models yet.
- Coding
- No data
- Overall
- No data
- Output $/M
- $0.25
- Coding
- No data
- Overall
- No data
- Output $/M
- $1.50
Nex-N2.5-Pro or Perceptron Mk1: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Nex-N2.5-Pro for output tokens 6.0x cheaper ($0.25 vs $1.50 per million) and a larger context window (262K against 33K tokens).
No benchmark has tested either model yet, so price and context are the only way to compare them.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Long documents
Listed context window
Nex-N2.5-Pro
Nex-N2.5-Pro takes 262K tokens against 33K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Nex-N2.5-Pro
Nex-N2.5-Pro $0.0002, Perceptron Mk1 $0.0009 per turn.
List prices
At a glance
- Coding index
- Nex-N2.5-Pro not benchmarked, Perceptron Mk1 not benchmarked.
- Widest category
- None yet: no category has been tested on both models.
- Widest single gap
- None yet: no benchmark has tested both models.
- Output price
- Nex-N2.5-Pro $0.25 against Perceptron Mk1 $1.50 per million output tokens, 6.0x apart.
- Context window
- Nex-N2.5-Pro takes 262K tokens, Perceptron Mk1 33K.
Benchmark by benchmark
Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Nex-N2.5-Pro costs less
Repository review
50K input + 3K output tokens
Nex-N2.5-Pro costs less
Agent loop
200K input + 10K output tokens
Nex-N2.5-Pro costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Nex AGI Nex-N2.5-Pro | Perceptron Mk1 |
|---|---|---|
| Maker | Nex AGI | Perceptron |
| Weights | Open weights | No public weights listed |
| Released | September 8, 2026 | May 12, 2026 |
| Context window | 262K | 33K |
| Input $/Mtok | $0.075 | $0.15 |
| Output $/Mtok | $0.25 | $1.50 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Nex-N2.5-Pro better than Perceptron Mk1 for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Nex-N2.5-Pro for output tokens 6.0x cheaper ($0.25 vs $1.50 per million) and a larger context window (262K against 33K tokens).
Which is cheaper, Nex-N2.5-Pro or Perceptron Mk1?
Nex-N2.5-Pro costs $0.075 per million input tokens and $0.25 per million output tokens; Perceptron Mk1 costs $0.15 and $1.50. Cost per solved task is known for neither of them.
Which has the bigger context window, Nex-N2.5-Pro or Perceptron Mk1?
Nex-N2.5-Pro, with 262K tokens against 33K.
Has any benchmark tested both Nex-N2.5-Pro and Perceptron Mk1?
No benchmark has tested either model yet, so price and context are the only way to compare them. Data as of October 22, 2026.