API cost decision in 10 seconds

GPT-5.4 Pro vs GLM 4.6V

Pick GLM 4.6V for lower cost; pick GPT-5.4 Pro only if the larger context window matters more.

Pricing data updated: 2026-05-26T11:08:00Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick GLM 4.6V for lower cost; pick GPT-5.4 Pro only if the larger context window matters more.

On the standard 1M input plus 500K output workload, GLM 4.6V is estimated at $0.75 vs $120 for GPT-5.4 Pro, saving $119.25 (99.4% lower).

Cost-first pickGLM 4.6V

Context-first pickGPT-5.4 Pro

Sample savings$119.2599.4%

10x traffic gap$1192.5

GPT-5.4 Pro has more context, but GLM 4.6V saves $119.25 on the standard workload. At 10x that traffic, the same price gap is about $1192.5. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

GLM 4.6V stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shape	Token mix	Better pick	GPT-5.4 Pro	GLM 4.6V
Input-heavy / RAG	5M input + 500K output	GLM 4.6V	$240	$1.95
Balanced workload	1M input + 1M output	GLM 4.6V	$210	$1.2
Output-heavy chatbot	1M input + 5M output	GLM 4.6V	$930	$4.8

Cheaper input GLM 4.6V $30 vs $0.3 / 1M

GLM 4.6V is $29.7 cheaper per 1M input tokens (99% lower; 100x difference).

Cheaper output GLM 4.6V $180 vs $0.9 / 1M

GLM 4.6V is $179.1 cheaper per 1M output tokens (99.5% lower; 200x difference).

Larger context GPT-5.4 Pro 1.05M vs 131.07K

GPT-5.4 Pro has 918.93K more context (8.01x larger).

Sample workload GLM 4.6V $120 vs $0.75

GLM 4.6V is $119.25 cheaper on the standard workload (99.4% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

GPT-5.4 Pro Calculating… Estimated API cost

GLM 4.6V Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

GLM 4.6V has the lower input price; GLM 4.6V has the lower output price; GPT-5.4 Pro offers the larger context window. For the 1M input plus 500K output sample, GLM 4.6V is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $120 for GPT-5.4 Pro and $0.75 for GLM 4.6V.

Best Fit

Choose GPT-5.4 Pro when you care most about larger context window.

Choose GLM 4.6V when you care most about lower input-token price, and lower output-token price.

Decision Notes

On the standard 1M input plus 500K output workload, GLM 4.6V is estimated at $0.75 vs $120 for GPT-5.4 Pro, saving $119.25 (99.4% lower).
GLM 4.6V is $119.25 cheaper on the standard workload (99.4% lower).
GLM 4.6V is $29.7 cheaper per 1M input tokens (99% lower; 100x difference).
GLM 4.6V is $179.1 cheaper per 1M output tokens (99.5% lower; 200x difference).
GPT-5.4 Pro has 918.93K more context (8.01x larger).

Head-to-Head Specs

Feature	GPT-5.4 Pro (OpenAI)	GLM 4.6V (Z.ai)
Input Price prompt tokens per 1M	$30	$0.3
Completion Price per 1M tokens	$180	$0.9
Sample Workload Cost 1M input + 500K output	$120	$0.75
Context Window	1.05M	131.07K
Release Date	2026-03-05	2025-12-08

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	GLM 4.6V	On the standard 1M input plus 500K output workload, GLM 4.6V is estimated at $0.75 vs $120 for GPT-5.4 Pro, saving $119.25 (99.4% lower).
High-volume input processing	GLM 4.6V	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	GLM 4.6V	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	GPT-5.4 Pro	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

gpt-oss-120b (free) can replace GPT-5.4 Pro when lower sample workload cost matters most: $0.
gpt-oss-20b (free) can replace GPT-5.4 Pro when lower sample workload cost matters most: $0.
gpt-oss-20b can replace GPT-5.4 Pro when lower sample workload cost matters most: $0.1.
gpt-oss-120b can replace GPT-5.4 Pro when lower sample workload cost matters most: $0.13.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.

Popular competitors

No popular competitor is currently available.

Cheaper alternatives

Review low-cost models sorted by a standard 1M input plus 500K output workload.

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Larger context alternatives

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Provider catalogs

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OpenAI catalog

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Z.ai catalog

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GPT-5.4 Pro

GPT-5.4 Pro is OpenAI's most advanced model, building on GPT-5.4's unified architecture with enhanced reasoning capabilities for complex, high-stakes tasks. It features a 1M+ token context window (922K input, 128K...

GLM 4.6V

GLM-4.6V is a large multimodal model designed for high-fidelity visual understanding and long-context reasoning across images, documents, and mixed media. It supports up to 128K tokens, processes complex page layouts...