ZMIME
Comparison · 3 models · Updated Oct 4, 2026

GLM-4.5-Air vs Llama 3.3 Nemotron Super 49B v1.5 vs Seed 1.6 Vision

Seed 1.6 Vision comes out ahead, 63 to 50 and 49 on our weighted score, and it is the cheaper option too.

  1. Z.ai (Zhipu)

    GLM-4.5-Air

    Released Jul 28, 2025

    49/100
    • ECI—
    • Price$0.20 / $1.10
    • Context131K
    Full specs Remove GLM-4.5-Air

  2. NVIDIA

    Llama 3.3 Nemotron Super 49B v1.5

    Released Jul 25, 2025Deprecated

    50/100
    • ECI—
    • Price$0.40 / $0.40
    • Context131K
    Full specs Remove Llama 3.3 Nemotron Super 49B v1.5
  3. Our pick

    ByteDance Seed

    Seed 1.6 Vision

    Released Aug 15, 2025

    63/100
    • ECI—
    • Price$0.119 / $1.19
    • Context256K
    Full specs Remove Seed 1.6 Vision
01 — Verdict

Seed 1.6 Vision is our pick

Seed 1.6 Vision is the better all-round choice, scoring 63/100 against Llama 3.3 Nemotron Super 49B v1.5 (50) and GLM-4.5-Air (49). It leads 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 priceSeed 1.6 VisionSeed 1.6 Vision $0.386 · Llama 3.3 Nemotron Super 49B v1.5 $0.40 · GLM-4.5-Air $0.425 per 1M tokens (3:1 blend)
  • Longest contextSeed 1.6 VisionSeed 1.6 Vision 256,000 · GLM-4.5-Air 131,072 · Llama 3.3 Nemotron Super 49B v1.5 131,072 tokens
  • Widest inputsSeed 1.6 VisionGLM-4.5-Air: Text · Llama 3.3 Nemotron Super 49B v1.5: Text · Seed 1.6 Vision: Text, Images
  • Self-hostingGLM-4.5-Air and Llama 3.3 Nemotron Super 49B v1.5Publishes downloadable weights
How the score is built
MeasureWeightGLM-4.5-AirLlama 3.3 Nemotron Super 49B v1.5Seed 1.6 Vision
Price50%686969
Inputs & features30%353570
Context window20%242436
Overall100%49/10050/10063/100

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.

GLM-4.5-Air vs Llama 3.3 Nemotron Super 49B v1.5 vs Seed 1.6 Vision specifications side by side
SpecificationGLM-4.5-AirZ.ai (Zhipu)Llama 3.3 Nemotron Super 49B v1.5NVIDIASeed 1.6 VisionByteDance Seed
Capability
Capabilities Index (ECI)———
ECI rank———
Price per million tokens
Input$0.20$0.40$0.119 (best)
Output$1.10$0.40 (best)$1.19
Cached input$0.03—$0.024 (best)
Blended (3:1)$0.425$0.40$0.386 (best)
Long-context rateSame rateSame rateOver 32K: $0.178 / $2.37
Price sourceOfficial Z.AI APIMedian of 1 providersOfficial Volcengine Ark API
Limits
Context window131,072 tokens131,072 tokens256,000 tokens (best)
Max output98,304 tokens131,072 tokens (best)32,000 tokens
Inputs and features
TextYesYesYes
ImagesNoNoYes
PDFsNoNoNo
AudioNoNoNo
VideoNoNoNo
ReasoningYesYesYes
Tool callingYesYesYes
Structured outputNoNoYes
Availability
WeightsOpenOpenProprietary
API model IDglm-4.5-airnvidia/llama-3.3-nemotron-super-49b-v1.5doubao-seed-1-6-vision-250815
API providers13 (best)22
ReleasedJul 28, 2025Jul 25, 2025Aug 15, 2025
Knowledge cutoffApr 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.

  • GLM-4.5-Air$4.20
  • Llama 3.3 Nemotron Super 49B v1.5$4.80
  • Seed 1.6 Vision$3.56
04 — Questions

Which should you choose?

Which is better: GLM-4.5-Air, Llama 3.3 Nemotron Super 49B v1.5 or Seed 1.6 Vision?

Seed 1.6 Vision is the better all-round choice, scoring 63/100 against Llama 3.3 Nemotron Super 49B v1.5 (50) and GLM-4.5-Air (49). It leads 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, GLM-4.5-Air, Llama 3.3 Nemotron Super 49B v1.5 or Seed 1.6 Vision?

Seed 1.6 Vision is cheaper at $0.119 input / $1.19 output per million tokens (official Volcengine Ark API price). Llama 3.3 Nemotron Super 49B v1.5 costs $0.40 input / $0.40 output per million tokens (median across 1 API provider; free on Nvidia); GLM-4.5-Air costs $0.20 input / $1.10 output per million tokens (official Z.AI API price). At a typical mix of three input tokens to one output token, that is $0.386 per million tokens for Seed 1.6 Vision versus $0.40 for Llama 3.3 Nemotron Super 49B v1.5 (1× as much) and $0.425 for GLM-4.5-Air (1.1× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers all three models yet. GLM-4.5-Air has not been scored yet, Llama 3.3 Nemotron Super 49B v1.5 has not been scored yet and Seed 1.6 Vision has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for GLM-4.5-Air, Llama 3.3 Nemotron Super 49B v1.5 and Seed 1.6 Vision 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?

Seed 1.6 Vision has the largest context window at 256,000 tokens, against 131,072 for GLM-4.5-Air and 131,072 for Llama 3.3 Nemotron Super 49B v1.5. Maximum output per response: GLM-4.5-Air up to 98,304, Llama 3.3 Nemotron Super 49B v1.5 up to 131,072, Seed 1.6 Vision up to 32,000 tokens.

Which can read images, PDFs, audio or video?

GLM-4.5-Air accepts text; Llama 3.3 Nemotron Super 49B v1.5 accepts text; Seed 1.6 Vision accepts text and images. Seed 1.6 Vision handles the widest range of inputs.

Are any of these open source?

GLM-4.5-Air and Llama 3.3 Nemotron Super 49B v1.5 publishes its weights and can be self-hosted; Seed 1.6 Vision is proprietary.

Which is newer?

Seed 1.6 Vision is the newest, released Aug 15, 2025. GLM-4.5-Air came out Jul 28, 2025; Llama 3.3 Nemotron Super 49B v1.5 came out Jul 25, 2025. Knowledge cutoff: GLM-4.5-Air 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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