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Comparison · 2 models · Updated Oct 4, 2026

Grok Build 0.1 vs LongCat-2.0

Grok Build 0.1 comes out ahead, 54 to 45 on our weighted score, and it is the cheaper option too.

  1. Our pick

    xAI

    Grok Build 0.1

    Released Apr 16, 2026

    54/100
    • ECI—
    • Price$1.00 / $2.00
    • Context256K
    Full specs Remove Grok Build 0.1

  2. Meituan (LongCat)

    LongCat-2.0

    Released Jun 30, 2026

    45/100
    • ECI—
    • Price$0.75 / $2.95
    • Context1M
    Full specs Remove LongCat-2.0

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

Grok Build 0.1 is our pick

Grok Build 0.1 is the better all-round choice, scoring 54/100 against LongCat-2.0 (45). It leads on inputs & features. LongCat-2.0 wins on context window. 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 priceGrok Build 0.1Grok Build 0.1 $1.25 · LongCat-2.0 $1.30 per 1M tokens (3:1 blend)
  • Longest contextLongCat-2.0LongCat-2.0 1,000,000 · Grok Build 0.1 256,000 tokens
  • Widest inputsGrok Build 0.1Grok Build 0.1: Text, Images, PDFs · LongCat-2.0: Text
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightGrok Build 0.1LongCat-2.0
Price50%4544
Inputs & features30%8035
Context window20%3660
Overall100%54/10045/100

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.

Grok Build 0.1 vs LongCat-2.0 specifications side by side
SpecificationGrok Build 0.1xAILongCat-2.0Meituan (LongCat)
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$1.00$0.75 (best)
Output$2.00 (best)$2.95
Cached input$0.20$0.015 (best)
Blended (3:1)$1.25 (best)$1.30
Long-context rateOver 200K: $2.00 / $4.00Same rate
Price sourceOfficial xAI APIOfficial LongCat API
Limits
Context window256,000 tokens1,000,000 tokens (best)
Max output256,000 tokens (best)131,072 tokens
Inputs and features
TextYesYes
ImagesYesNo
PDFsYesNo
AudioNoNo
VideoNoNo
ReasoningYesYes
Tool callingYesYes
Structured outputYesNo
Availability
WeightsProprietaryProprietary
API model IDgrok-build-0.1LongCat-2.0
API providers19 (best)5
ReleasedApr 16, 2026Jun 30, 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.

  • Grok Build 0.1$14.00
  • LongCat-2.0$13.40
04 — Questions

Which should you choose?

Which is better: Grok Build 0.1 or LongCat-2.0?

Grok Build 0.1 is the better all-round choice, scoring 54/100 against LongCat-2.0 (45). It leads on inputs & features. LongCat-2.0 wins on context window. 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, Grok Build 0.1 or LongCat-2.0?

Grok Build 0.1 is cheaper at $1.00 input / $2.00 output per million tokens (official xAI API price). LongCat-2.0 costs $0.75 input / $2.95 output per million tokens (official LongCat API price). At a typical mix of three input tokens to one output token, that is $1.25 per million tokens for Grok Build 0.1 versus $1.30 for LongCat-2.0 (1× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Grok Build 0.1 has not been scored yet and LongCat-2.0 has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Grok Build 0.1 and LongCat-2.0 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?

LongCat-2.0 has the largest context window at 1,000,000 tokens, against 256,000 for Grok Build 0.1. Maximum output per response: Grok Build 0.1 up to 256,000, LongCat-2.0 up to 131,072 tokens.

Which can read images, PDFs, audio or video?

Grok Build 0.1 accepts text, images and PDFs; LongCat-2.0 accepts text. Grok Build 0.1 handles the widest range of inputs.

Are any of these open source?

No. Grok Build 0.1 and LongCat-2.0 are proprietary and only available through APIs and apps.

Which is newer?

LongCat-2.0 is the newest, released Jun 30, 2026. Grok Build 0.1 came out Apr 16, 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 Oct 4, 2026.

05 — Keep comparing

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