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Head-to-head comparison

Nex-N2-Pro vs Solar Open2 250B

Nex-N2-Pro (Nex AGI) and Solar Open2 250B (Upstage) compared on the ModelCap Index, API price, context window, provider availability, weight access and every public benchmark board they share. Figures are the same ones shown on the live rankings; nothing here is a hidden score.

Snapshot as of 18 August 2026

As of 18 August 2026, Nex-N2-Pro holds the stronger ModelCap Index position (#28 vs #46); and Nex-N2-Pro ships open weights.

Which should you choose?

Choose Nex-N2-Pro if…

  • you want the stronger overall ModelCap Index position — #28 against #46 (61.1 vs 51.4 points).
  • you want to self-host: Nex-N2-Pro ships open weights while Solar Open2 250B is restricted license.
  • you want provider choice — 2 listed API providers against 0.
  • Artificial Analysis Intelligence Index is your yardstick — 41.7 against 37.4.

Choose Solar Open2 250B if…

  • you want the more recently listed model — Solar Open2 250B was listed 22 July 2026, Nex-N2-Pro 8 June 2026.

Nex-N2-Pro vs Solar Open2 250B: specs, pricing and context

Specification comparison of Nex-N2-Pro and Solar Open2 250B
FieldNex-N2-ProNex AGISolar Open2 250BUpstage
ModelCap Index position#28#46
Index score61.151.4
EvidenceMeasuredMeasured
Input price / 1M tokens$0.25Unlisted
Output price / 1M tokens$1.00Unlisted
Context window262K tokens— tokens
Max output tokens262K—
API providers listed20
Weight accessOpen weightsRestricted license
Input modalitiesText, ImageText
First listed8 June 202622 July 2026
PublisherNex AGIUpstage

Evidence: 1 public benchmark observation across 1 board · 1 public benchmark observation across 1 board. Prices are the lowest listed API offer per million tokens observed on the OpenRouter catalogue.

Benchmark scores: Nex-N2-Pro vs Solar Open2 250B

Public benchmark boards where Nex-N2-Pro or Solar Open2 250B has a published result
BoardNex-N2-ProSolar Open2 250BLeads
Artificial Analysis Intelligence IndexArtificial Analysis41.7intelligence-index37.4intelligence-indexNex-N2-Pro

Scores are the sources' own published figures for each model's best evaluated configuration; ModelCap never re-runs a benchmark.

Want a different pairing? Open the interactive comparison tool to swap either model for any current ranked language model.

Nex-N2-Pro vs Solar Open2 250B: common questions

Is Nex-N2-Pro better than Solar Open2 250B?

Nex-N2-Pro ranks higher on the ModelCap Index as of 18 August 2026: #28 against #46. That is a capability ranking built from public benchmark evidence with published uncertainty; whether it is "better" for you also depends on price, context and where you can run it.

Is Nex-N2-Pro cheaper than Solar Open2 250B?

At least one of the two has no listed API price on ModelCap right now, so no price comparison is made.

Which has the bigger context window, Nex-N2-Pro or Solar Open2 250B?

Both publish a 262K-token context window.

Which is better for coding, Nex-N2-Pro or Solar Open2 250B?

The two models do not share a coding benchmark board on ModelCap yet, so no head-to-head coding score is published; the ModelCap Index position is the closest overall signal.

Are Nex-N2-Pro and Solar Open2 250B open-weight models?

Nex-N2-Pro: Open weights. Solar Open2 250B: Restricted license. Open weights mean the checkpoint can be downloaded and self-hosted under its licence; API-only models are available solely through hosted endpoints.

Where can I run Nex-N2-Pro and Solar Open2 250B?

ModelCap currently lists 2 API providers for Nex-N2-Pro and 0 for Solar Open2 250B, from the OpenRouter catalogue snapshot the site serves; each model page lists the providers and their prices.

How current is this Nex-N2-Pro vs Solar Open2 250B comparison?

Every figure comes from the sealed ModelCap dataset published 18 August 2026; the page re-renders within a minute of each data refresh, and the ModelCap Index positions are the same ones shown on the live rankings.

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