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Comparison · 3 models · Updated Oct 4, 2026

GPT OSS 120B vs Palmyra X5 vs Qwen3 Coder Plus

GPT OSS 120B comes out ahead, 57 to 48 and 37 on our weighted score, and it is the cheaper option too.

  1. Our pick

    OpenAI

    GPT OSS 120B

    Released Aug 5, 2025

    57/100
    • ECI140.0
    • Price$0.15 / $0.60
    • Context131K
    Full specs Remove GPT OSS 120B

  2. Writer

    Palmyra X5

    Released Apr 28, 2025

    48/100
    • ECI—
    • Price$0.60 / $6.00
    • Context1M
    Full specs Remove Palmyra X5

  3. Alibaba (Qwen)

    Qwen3 Coder Plus

    Released Jul 23, 2025

    37/100
    • ECI—
    • Price$1.00 / $5.00
    • Context1.05M
    Full specs Remove Qwen3 Coder Plus
01 — Verdict

GPT OSS 120B is our pick

GPT OSS 120B is the better all-round choice, scoring 57/100 against Palmyra X5 (48) and Qwen3 Coder Plus (37). It leads on price. Palmyra X5 wins on inputs & features. 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 priceGPT OSS 120BGPT OSS 120B $0.263 · Palmyra X5 $1.95 · Qwen3 Coder Plus $2.00 per 1M tokens (3:1 blend)
  • Longest contextQwen3 Coder PlusQwen3 Coder Plus 1,048,576 · Palmyra X5 1,000,000 · GPT OSS 120B 131,072 tokens
  • Widest inputsPalmyra X5GPT OSS 120B: Text · Palmyra X5: Text, Images · Qwen3 Coder Plus: Text
  • Self-hostingGPT OSS 120BPublishes downloadable weights
How the score is built
MeasureWeightGPT OSS 120BPalmyra X5Qwen3 Coder Plus
Price50%773636
Inputs & features30%456025
Context window20%246061
Overall100%57/10048/10037/100

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.

GPT OSS 120B vs Palmyra X5 vs Qwen3 Coder Plus specifications side by side
SpecificationGPT OSS 120BOpenAIPalmyra X5WriterQwen3 Coder PlusAlibaba (Qwen)
Capability
Capabilities Index (ECI)140.0——
ECI rank#99 of 148——
GPQA DiamondGraduate-level science questions75.8%——
OTIS Mock AIME 2024–2025Competition mathematics88.9%——
Price per million tokens
Input$0.15 (best)$0.60$1.00
Output$0.60 (best)$6.00$5.00
Cached input———
Blended (3:1)$0.263 (best)$1.95$2.00
Long-context rateSame rateSame rateSame rate
Price sourceMedian of 36 providersMedian of 1 providersOfficial Alibaba API
Limits
Context window131,072 tokens1,000,000 tokens1,048,576 tokens (best)
Max output32,768 tokens8,192 tokens65,536 tokens (best)
Inputs and features
TextYesYesYes
ImagesNoYesNo
PDFsNoNoNo
AudioNoNoNo
VideoNoNoNo
ReasoningYesYesNo
Tool callingYesYesYes
Structured outputYesNoNo
Availability
WeightsOpenProprietaryProprietary
API model ID——qwen3-coder-plus
API providers39 (best)111
ReleasedAug 5, 2025Apr 28, 2025Jul 23, 2025
Knowledge cutoff——Apr 2025
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.

  • GPT OSS 120B$2.70
  • Palmyra X5$18.00
  • Qwen3 Coder Plus$20.00
04 — Questions

Which should you choose?

Which is better: GPT OSS 120B, Palmyra X5 or Qwen3 Coder Plus?

GPT OSS 120B is the better all-round choice, scoring 57/100 against Palmyra X5 (48) and Qwen3 Coder Plus (37). It leads on price. Palmyra X5 wins on inputs & features. 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, GPT OSS 120B, Palmyra X5 or Qwen3 Coder Plus?

GPT OSS 120B is cheaper at $0.15 input / $0.60 output per million tokens (median across 36 API providers). Palmyra X5 costs $0.60 input / $6.00 output per million tokens (median across 1 API provider); Qwen3 Coder Plus costs $1.00 input / $5.00 output per million tokens (official Alibaba API price). At a typical mix of three input tokens to one output token, that is $0.263 per million tokens for GPT OSS 120B versus $1.95 for Palmyra X5 (7.4× as much) and $2.00 for Qwen3 Coder Plus (7.6× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers all three models yet. GPT OSS 120B has an ECI of 140.0, Palmyra X5 has not been scored yet and Qwen3 Coder Plus has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for GPT OSS 120B, Palmyra X5 and Qwen3 Coder Plus yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. All three support tool calling for agent workflows.

Which has the bigger context window?

Qwen3 Coder Plus has the largest context window at 1,048,576 tokens, against 1,000,000 for Palmyra X5 and 131,072 for GPT OSS 120B. Maximum output per response: GPT OSS 120B up to 32,768, Palmyra X5 up to 8,192, Qwen3 Coder Plus up to 65,536 tokens.

Which can read images, PDFs, audio or video?

GPT OSS 120B accepts text; Palmyra X5 accepts text and images; Qwen3 Coder Plus accepts text. Palmyra X5 handles the widest range of inputs.

Are any of these open source?

GPT OSS 120B publishes its weights and can be self-hosted; Palmyra X5 and Qwen3 Coder Plus is proprietary.

Which is newer?

GPT OSS 120B is the newest, released Aug 5, 2025. Qwen3 Coder Plus came out Jul 23, 2025; Palmyra X5 came out Apr 28, 2025. Knowledge cutoff: Qwen3 Coder Plus Apr 2025.

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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