API cost decision in 10 seconds

🔥Gemini 3 Flash Preview vs GLM 4.6V

Pick GLM 4.6V for lower cost; pick Gemini 3 Flash Preview only if the larger context window matters more.

Page updated: 2026-05-26T12:03:47Z Data confirmed: 2026-05-26T12:43:06Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick GLM 4.6V for lower cost; pick Gemini 3 Flash Preview 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 $2 for Gemini 3 Flash Preview, saving $1.25 (62.5% lower).

Cost-first pickGLM 4.6V

Context-first pickGemini 3 Flash Preview

Sample savings$1.2562.5%

10x traffic gap$12.5

Gemini 3 Flash Preview has more context, but GLM 4.6V saves $1.25 on the standard workload. At 10x that traffic, the same price gap is about $12.5. 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	Gemini 3 Flash Preview	GLM 4.6V
Input-heavy / RAG	5M input + 500K output	GLM 4.6V	$4	$1.95
Balanced workload	1M input + 1M output	GLM 4.6V	$3.5	$1.2
Output-heavy chatbot	1M input + 5M output	GLM 4.6V	$15.5	$4.8

Cheaper input GLM 4.6V $0.5 vs $0.3 / 1M

GLM 4.6V is $0.2 cheaper per 1M input tokens (40% lower; 1.67x difference).

Cheaper output GLM 4.6V $3 vs $0.9 / 1M

GLM 4.6V is $2.1 cheaper per 1M output tokens (70% lower; 3.33x difference).

Larger context Gemini 3 Flash Preview 1.05M vs 131.07K

Gemini 3 Flash Preview has 917.5K more context (8x larger).

Sample workload GLM 4.6V $2 vs $0.75

GLM 4.6V is $1.25 cheaper on the standard workload (62.5% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Gemini 3 Flash Preview 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; Gemini 3 Flash Preview 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 $2 for Gemini 3 Flash Preview and $0.75 for GLM 4.6V.

Best Fit

Choose Gemini 3 Flash Preview 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 $2 for Gemini 3 Flash Preview, saving $1.25 (62.5% lower).
GLM 4.6V is $1.25 cheaper on the standard workload (62.5% lower).
GLM 4.6V is $0.2 cheaper per 1M input tokens (40% lower; 1.67x difference).
GLM 4.6V is $2.1 cheaper per 1M output tokens (70% lower; 3.33x difference).
Gemini 3 Flash Preview has 917.5K more context (8x larger).

Head-to-Head Specs

Feature	🔥Gemini 3 Flash Preview (Google)	GLM 4.6V (Z.ai)
Input Price prompt tokens per 1M	$0.5	$0.3
Completion Price per 1M tokens	$3	$0.9
Sample Workload Cost 1M input + 500K output	$2	$0.75
Context Window	1.05M	131.07K
Release Date	2025-12-17	2025-12-08
Popularity	#7

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 $2 for Gemini 3 Flash Preview, saving $1.25 (62.5% 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	Gemini 3 Flash Preview	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Gemma 4 26B A4B (free) can replace Gemini 3 Flash Preview when lower sample workload cost matters most: $0.
Gemma 4 31B (free) can replace Gemini 3 Flash Preview when lower sample workload cost matters most: $0.
Lyria 3 Pro Preview can replace Gemini 3 Flash Preview when lower sample workload cost matters most: $0.
Lyria 3 Clip Preview can replace Gemini 3 Flash Preview when lower sample workload cost matters most: $0.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
Owl Alpha offers 1.05M context with $0 sample workload cost.

Popular competitors

DeepSeek V4 Flash · DeepSeek · #1
Hy3 preview · Tencent · #2
Claude Opus 4.7 · Anthropic · #3
Claude Sonnet 4.6 · Anthropic · #4

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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Google catalog

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Z.ai catalog

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Gemini 3 Flash Preview

Gemini 3 Flash Preview is a high speed, high value thinking model designed for agentic workflows, multi turn chat, and coding assistance. It delivers near Pro level reasoning and tool...

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...