ZMIME
Comparison · 3 models · Updated Nov 2, 2026

GLM-4.5-Air vs ERNIE 4.5 300B A47B vs Codestral 25.08

Too close to call on our weighted score (GLM-4.5-Air 48, Codestral 25.08 47, ERNIE 4.5 300B A47B 43). The right pick depends on what you value most.

  1. Z.ai (Zhipu)

    GLM-4.5-Air

    Released Jul 28, 2025

    48/100
    • ECI—
    • Price$0.20 / $1.10
    • Context131K
  2. Baidu

    ERNIE 4.5 300B A47B

    Released Jun 30, 2025

    43/100
    • ECI—
    • Price$0.28 / $1.10
    • Context131K
  3. Mistral AI

    Codestral 25.08

    Released Jul 30, 2025

    47/100
    • ECI—
    • Price$0.30 / $0.90
    • Context128K
01 — Verdict

Too close to call

It is close. Our weighted score puts them within a point (GLM-4.5-Air 48/100, Codestral 25.08 47/100, ERNIE 4.5 300B A47B 43/100), so choose by what matters most for your work: GLM-4.5-Air 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 priceGLM-4.5-AirGLM-4.5-Air $0.425 · Codestral 25.08 $0.45 · ERNIE 4.5 300B A47B $0.485 per 1M tokens (3:1 blend)
  • Longest contextGLM-4.5-Air and ERNIE 4.5 300B A47BGLM-4.5-Air 131,072 · ERNIE 4.5 300B A47B 131,072 · Codestral 25.08 128,000 tokens
  • Widest inputsSame inputsGLM-4.5-Air: Text · ERNIE 4.5 300B A47B: Text · Codestral 25.08: Text
  • Self-hostingGLM-4.5-Air and ERNIE 4.5 300B A47BPublishes downloadable weights (Apache-2.0)
How the score is built
MeasureWeightGLM-4.5-AirERNIE 4.5 300B A47BCodestral 25.08
Price50%656264
Inputs & features30%352535
Context window20%252524
Overall100%48/10043/10047/100

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 ERNIE 4.5 300B A47B vs Codestral 25.08 specifications side by side
SpecificationGLM-4.5-AirZ.ai (Zhipu)ERNIE 4.5 300B A47BBaiduCodestral 25.08Mistral AI
Capability
Capabilities Index (ECI)———
ECI rank———
Price per million tokens
Input$0.20 (best)$0.28$0.30
Output$1.10$1.10$0.90 (best)
Cached input$0.03—$0.03
Blended (3:1)$0.425 (best)$0.485$0.45
Long-context rateSame rateSame rateSame rate
Price sourceOfficial Z.AI APIMedian of 1 providersOfficial Mistral API
Limits
Context window131,072 tokens (best)131,072 tokens (best)128,000 tokens
Max output98,304 tokens (best)12,000 tokens8,192 tokens
Inputs and features
TextYesYesYes
ImagesNoNoNo
PDFsNoNoNo
AudioNoNoNo
VideoNoNoNo
ReasoningYesNoNo
Tool callingYesYesYes
Structured outputNoNoYes
Availability
WeightsOpenOpenApache-2.0Proprietary
API model IDglm-4.5-air—codestral-2508
API providers19 (best)111
ReleasedJul 28, 2025Jun 30, 2025Jul 30, 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
  • ERNIE 4.5 300B A47B$5.00
  • Codestral 25.08$4.80
04 — Questions

Which should you choose?

Which is better: GLM-4.5-Air, ERNIE 4.5 300B A47B or Codestral 25.08?

It is close. Our weighted score puts them within a point (GLM-4.5-Air 48/100, Codestral 25.08 47/100, ERNIE 4.5 300B A47B 43/100), so choose by what matters most for your work: GLM-4.5-Air 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, GLM-4.5-Air, ERNIE 4.5 300B A47B or Codestral 25.08?

GLM-4.5-Air is cheaper at $0.20 input / $1.10 output per million tokens (official Z.AI API price). Codestral 25.08 costs $0.30 input / $0.90 output per million tokens (official Mistral API price); ERNIE 4.5 300B A47B costs $0.28 input / $1.10 output per million tokens (median across 1 API provider). At a typical mix of three input tokens to one output token, that is $0.425 per million tokens for GLM-4.5-Air versus $0.45 for Codestral 25.08 (1.1× as much) and $0.485 for ERNIE 4.5 300B A47B (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, ERNIE 4.5 300B A47B has not been scored yet and Codestral 25.08 has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for GLM-4.5-Air, ERNIE 4.5 300B A47B and Codestral 25.08 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?

GLM-4.5-Air and ERNIE 4.5 300B A47B have the largest context windows (131,072 and 131,072 tokens), against 128,000 for Codestral 25.08. Maximum output per response: GLM-4.5-Air up to 98,304, ERNIE 4.5 300B A47B up to 12,000, Codestral 25.08 up to 8,192 tokens.

Which can read images, PDFs, audio or video?

GLM-4.5-Air accepts text; ERNIE 4.5 300B A47B accepts text; Codestral 25.08 accepts text. They handle the same number of input types.

Are any of these open source?

GLM-4.5-Air and ERNIE 4.5 300B A47B publishes its weights (Apache-2.0) and can be self-hosted; Codestral 25.08 is proprietary.

Which is newer?

Codestral 25.08 is the newest, released Jul 30, 2025. GLM-4.5-Air came out Jul 28, 2025; ERNIE 4.5 300B A47B came out Jun 30, 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 Nov 2, 2026.