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Comparison · 2 models · Updated Nov 2, 2026

solar-mini vs Palmyra X4

solar-mini comes out ahead, 50 to 25 on our weighted score, and it is the cheaper option too.

  1. Our pick

    Upstage

    solar-mini

    Released Jun 12, 2024

    50/100
    • ECI—
    • Price$0.15 / $0.15
    • Context33K
  2. Writer

    Palmyra X4

    Released Oct 9, 2024

    25/100
    • ECI—
    • Price$2.50 / $10.00
    • Context128K
  3. Add a model

    Make it a three-way comparison.

01 — Verdict

solar-mini is our pick

solar-mini is the better all-round choice, scoring 50/100 against Palmyra X4 (25). It leads on price. Palmyra X4 wins on inputs & features and 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 pricesolar-minisolar-mini $0.15 · Palmyra X4 $4.38 per 1M tokens (3:1 blend)
  • Longest contextPalmyra X4Palmyra X4 128,000 · solar-mini 32,768 tokens
  • Widest inputsSame inputssolar-mini: Text · Palmyra X4: Text
  • Self-hostingNo open weightsBoth are available only through APIs
How the score is built
MeasureWeightsolar-miniPalmyra X4
Price50%8519
Inputs & features30%2535
Context window20%024
Overall100%50/10025/100

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.

solar-mini vs Palmyra X4 specifications side by side
Specificationsolar-miniUpstagePalmyra X4Writer
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$0.15 (best)$2.50
Output$0.15 (best)$10.00
Cached input——
Blended (3:1)$0.15 (best)$4.38
Long-context rateSame rateSame rate
Price sourceOfficial Upstage APIMedian of 2 providers
Limits
Context window32,768 tokens128,000 tokens (best)
Max output4,096 tokens4,096 tokens
Inputs and features
TextYesYes
ImagesNoNo
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningNoYes
Tool callingYesYes
Structured outputNoNo
Availability
WeightsProprietaryProprietary
API model IDsolar-mini—
API providers12 (best)
ReleasedJun 12, 2024Oct 9, 2024
Knowledge cutoffSep 2024—
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.

  • solar-mini$1.80
  • Palmyra X4$45.00
04 — Questions

Which should you choose?

Which is better: solar-mini or Palmyra X4?

solar-mini is the better all-round choice, scoring 50/100 against Palmyra X4 (25). It leads on price. Palmyra X4 wins on inputs & features and 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, solar-mini or Palmyra X4?

solar-mini is cheaper at $0.15 input / $0.15 output per million tokens (official Upstage API price). Palmyra X4 costs $2.50 input / $10.00 output per million tokens (median across 2 API providers). At a typical mix of three input tokens to one output token, that is $0.15 per million tokens for solar-mini versus $4.38 for Palmyra X4 (29× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. solar-mini has not been scored yet and Palmyra X4 has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for solar-mini and Palmyra X4 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?

Palmyra X4 has the largest context window at 128,000 tokens, against 32,768 for solar-mini. Maximum output per response: solar-mini up to 4,096, Palmyra X4 up to 4,096 tokens.

Which can read images, PDFs, audio or video?

solar-mini accepts text; Palmyra X4 accepts text. They handle the same number of input types.

Are any of these open source?

No. solar-mini and Palmyra X4 are proprietary and only available through APIs and apps.

Which is newer?

Palmyra X4 is the newest, released Oct 9, 2024. solar-mini came out Jun 12, 2024. Knowledge cutoff: solar-mini Sep 2024.

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.