ZMIME
Comparison · 2 models · Updated Nov 2, 2026

ERNIE 4.5 VL 424B A47B vs GPT OSS 20B

GPT OSS 20B comes out ahead, 61 to 44 on our weighted score, and it is the cheaper option too.

  1. Baidu

    ERNIE 4.5 VL 424B A47B

    Released Jun 30, 2025

    44/100
    • ECI—
    • Price$0.42 / $1.25
    • Context123K
    Full specs Remove ERNIE 4.5 VL 424B A47B
  2. Our pick

    OpenAI

    GPT OSS 20B

    Released Aug 5, 2025

    61/100
    • ECI137.8
    • Price$0.07 / $0.25
    • Context131K
    Full specs Remove GPT OSS 20B

  3. Add a model

    Make it a three-way comparison.

01 — Verdict

GPT OSS 20B is our pick

GPT OSS 20B is the better all-round choice, scoring 61/100 against ERNIE 4.5 VL 424B A47B (44). It leads 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 priceGPT OSS 20BGPT OSS 20B $0.115 · ERNIE 4.5 VL 424B A47B $0.627 per 1M tokens (3:1 blend)
  • Longest contextGPT OSS 20BGPT OSS 20B 131,072 · ERNIE 4.5 VL 424B A47B 123,000 tokens
  • Widest inputsERNIE 4.5 VL 424B A47B ERNIE 4.5 VL 424B A47B : Text, Images · GPT OSS 20B: Text
  • Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
How the score is built
MeasureWeightERNIE 4.5 VL 424B A47B GPT OSS 20B
Price50%5790
Inputs & features30%3535
Context window20%2325
Overall100%44/10061/100

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.

ERNIE 4.5 VL 424B A47B vs GPT OSS 20B specifications side by side
SpecificationERNIE 4.5 VL 424B A47B BaiduGPT OSS 20BOpenAI
Capability
Capabilities Index (ECI)—137.8
ECI rank—#122 of 165
GPQA DiamondGraduate-level science questions—60.8%
OTIS Mock AIME 2024–2025Competition mathematics—65.3%
Price per million tokens
Input$0.42$0.07 (best)
Output$1.25$0.25 (best)
Cached input——
Blended (3:1)$0.627$0.115 (best)
Long-context rateSame rateSame rate
Price sourceMedian of 1 providersMedian of 37 providers
Limits
Context window123,000 tokens131,072 tokens (best)
Max output16,000 tokens32,768 tokens (best)
Inputs and features
TextYesYes
ImagesYesNo
PDFsNoNo
AudioNoNo
VideoNoNo
ReasoningYesYes
Tool callingNoYes
Structured outputNoNo
Availability
WeightsOpenOpen
API model ID——
API providers141 (best)
ReleasedJun 30, 2025Aug 5, 2025
Knowledge cutoffMar 31, 2025Jun 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.

  • ERNIE 4.5 VL 424B A47B $6.70
  • GPT OSS 20B$1.20
04 — Questions

Which should you choose?

Which is better: ERNIE 4.5 VL 424B A47B or GPT OSS 20B?

GPT OSS 20B is the better all-round choice, scoring 61/100 against ERNIE 4.5 VL 424B A47B (44). It leads 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, ERNIE 4.5 VL 424B A47B or GPT OSS 20B?

GPT OSS 20B is cheaper at $0.07 input / $0.25 output per million tokens (median across 37 API providers). ERNIE 4.5 VL 424B A47B costs $0.42 input / $1.25 output per million tokens (median across 1 API provider). At a typical mix of three input tokens to one output token, that is $0.115 per million tokens for GPT OSS 20B versus $0.627 for ERNIE 4.5 VL 424B A47B (5.5× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. ERNIE 4.5 VL 424B A47B has not been scored yet and GPT OSS 20B has an ECI of 137.8.

Which is better for coding?

There are no published SWE-bench Verified results for ERNIE 4.5 VL 424B A47B and GPT OSS 20B yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Note that ERNIE 4.5 VL 424B A47B does not support tool calling, which most coding agents need.

Which has the bigger context window?

GPT OSS 20B has the largest context window at 131,072 tokens, against 123,000 for ERNIE 4.5 VL 424B A47B . Maximum output per response: ERNIE 4.5 VL 424B A47B up to 16,000, GPT OSS 20B up to 32,768 tokens.

Which can read images, PDFs, audio or video?

ERNIE 4.5 VL 424B A47B accepts text and images; GPT OSS 20B accepts text. ERNIE 4.5 VL 424B A47B handles the widest range of inputs.

Are any of these open source?

Yes, both publish their weights, so you can self-host them.

Which is newer?

GPT OSS 20B is the newest, released Aug 5, 2025. ERNIE 4.5 VL 424B A47B came out Jun 30, 2025. Knowledge cutoff: ERNIE 4.5 VL 424B A47B Mar 31, 2025, GPT OSS 20B Jun 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.

05 — Keep comparing

Related comparisons