ZMIME
Comparison · 2 models · Updated Nov 2, 2026

Nex-N2-Pro vs Grok 4.20 (Non-Reasoning)

Grok 4.20 (Non-Reasoning) comes out ahead, 52 to 49 on our weighted score, though Nex-N2-Pro is 36% cheaper per token.

  1. Nex AGI

    Nex-N2-Pro

    Released Jun 2, 2026

    49/100
    • ECI—
    • Price$0.50 / $2.50
    • Context262K
  2. Our pick

    xAI

    Grok 4.20 (Non-Reasoning)

    Released Mar 9, 2026

    52/100
    • ECI—
    • Price$1.25 / $2.50
    • Context1M
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Grok 4.20 (Non-Reasoning) is our pick

Grok 4.20 (Non-Reasoning) is the better all-round choice, scoring 52/100 against Nex-N2-Pro (49). It leads on inputs & features and context window. Nex-N2-Pro wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceNex-N2-ProNex-N2-Pro $1.00 · Grok 4.20 (Non-Reasoning) $1.56 per 1M tokens (3:1 blend)
  • Longest contextGrok 4.20 (Non-Reasoning)Grok 4.20 (Non-Reasoning) 1,000,000 · Nex-N2-Pro 262,144 tokens
  • Widest inputsGrok 4.20 (Non-Reasoning)Nex-N2-Pro: Text, Images · Grok 4.20 (Non-Reasoning): Text, Images, PDFs
  • Self-hostingNex-N2-ProPublishes downloadable weights
How the score is built
MeasureWeightNex-N2-ProGrok 4.20 (Non-Reasoning)
Price50%4839
Inputs & features30%6070
Context window20%3760
Overall100%49/10052/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Nex-N2-Pro vs Grok 4.20 (Non-Reasoning) specifications side by side
SpecificationNex-N2-ProNex AGIGrok 4.20 (Non-Reasoning)xAI
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$0.50 (best)$1.25
Output$2.50$2.50
Cached input—$0.20
Blended (3:1)$1.00 (best)$1.56
Long-context rateSame rateOver 200K: $2.50 / $5.00
Price sourceMedian of 1 providersOfficial xAI API
Limits
Context window262,144 tokens1,000,000 tokens (best)
Max output262,144 tokens (best)30,000 tokens
Inputs and features
TextYesYes
ImagesYesYes
PDFsNoYes
AudioNoNo
VideoNoNo
ReasoningYesNo
Tool callingYesYes
Structured outputNoYes
Availability
WeightsOpenProprietary
API model ID—grok-4.20-0309-non-reasoning
API providers113 (best)
ReleasedJun 2, 2026Mar 9, 2026
Knowledge cutoff——
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Nex-N2-Pro$10.00
  • Grok 4.20 (Non-Reasoning)$17.50
04 — Questions

Which should you choose?

Which is better: Nex-N2-Pro or Grok 4.20 (Non-Reasoning)?

Grok 4.20 (Non-Reasoning) is the better all-round choice, scoring 52/100 against Nex-N2-Pro (49). It leads on inputs & features and context window. Nex-N2-Pro wins on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Nex-N2-Pro or Grok 4.20 (Non-Reasoning)?

Nex-N2-Pro is cheaper at $0.50 input / $2.50 output per million tokens (median across 1 API provider). Grok 4.20 (Non-Reasoning) costs $1.25 input / $2.50 output per million tokens (official xAI API price). At a typical mix of three input tokens to one output token, that is $1.00 per million tokens for Nex-N2-Pro versus $1.56 for Grok 4.20 (Non-Reasoning) (1.6× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Nex-N2-Pro has not been scored yet and Grok 4.20 (Non-Reasoning) has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Nex-N2-Pro and Grok 4.20 (Non-Reasoning) yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

Grok 4.20 (Non-Reasoning) has the largest context window at 1,000,000 tokens, against 262,144 for Nex-N2-Pro. Maximum output per response: Nex-N2-Pro up to 262,144, Grok 4.20 (Non-Reasoning) up to 30,000 tokens.

Which can read images, PDFs, audio or video?

Nex-N2-Pro accepts text and images; Grok 4.20 (Non-Reasoning) accepts text, images and PDFs. Grok 4.20 (Non-Reasoning) handles the widest range of inputs.

Are any of these open source?

Nex-N2-Pro publishes its weights and can be self-hosted; Grok 4.20 (Non-Reasoning) is proprietary.

Which is newer?

Nex-N2-Pro is the newest, released Jun 2, 2026. Grok 4.20 (Non-Reasoning) came out Mar 9, 2026.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Nov 2, 2026.