AI Index

GLM-5.3-FlashvsSeed 2.0 mini

Both language models, compared at each maker’s own API list prices. Every figure links to its source.

Compare at your usage

Every model priced for the same request
Prompt per request
Cache hits
Batch
Service tier

8,000 tokens in, 2,000 out

GLM-5.3-Flash on Z.ai APISeed 2.0 mini on BytePlus ModelArk
Rate appliedBase rateBase rate
Inputper 1M tokens$0.15 $0.10
Cache readper 1M tokens$0.030 $0.020
Outputper 1M tokens$0.50 $0.40
Cost per request$0.0022$0.0016
Per 1,000 requests$2.20$1.60

Every model is priced for the same request at its maker’s own list prices (each with its source and date), so bold marks the cheapest. A model that can’t serve the request is named, not ranked; a condition its seller doesn’t price says which rate was used.

Cost per request as prompts grow

2K tokens out, list price on each maker’s API. Seed 2.0 mini charges $0.20 / $0.80 above 128K tokens. A line ends at the model’s context window.

0$0.050$0.10$0.150250K500K750K1Mprompt tokens per request128K8KGLM-5.3-Flash$0.0022 at 8KSeed 2.0 mini$0.0016 at 8K
  • GLM-5.3-Flash · Z.ai API
  • Seed 2.0 mini · BytePlus ModelArk

Key differences

GLM-5.3-FlashSeed 2.0 mini
InputMaker’s official API · china · CNY
¥0.80 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026
¥0.20 / 1M tokens 火山方舟：模型价格in Chinese · as of Nov 2, 2026
OutputMaker’s official API · china · CNY
¥2.80 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026
¥2.00 / 1M tokens 火山方舟：模型价格in Chinese · as of Nov 2, 2026
Context
1,000,000 GLM-5.3-Flash/FlashX · as of Nov 1, 2026
256,000 模型列表 - 火山方舟 - 火山引擎in Chinese · as of Oct 30, 2026
Input modalities
Text, Image, Video GLM-5.3-Flash/FlashX · as of Nov 1, 2026
Text, Image, Audio, Video 火山方舟：模型发布公告in Chinese · as of Nov 1, 2026
Cache readMaker’s official API · china · CNY
¥0.23 / 1M tokens 智谱 BigModel：API 定价in Chinese · as of Nov 2, 2026
¥0.040 / 1M tokens 火山方舟：模型价格in Chinese · as of Nov 2, 2026

These differences use verified vendor specifications or each maker’s official API on the same region, currency, meter and billing conditions. Different conditions remain side by side in the full table; they do not establish which model is cheaper. Declared features describe support, not measured quality or a recommendation. Missing evidence does not mean a feature is unsupported.

Full comparison

GLM-5.3-Flash Zhipu AI Seed 2.0 mini ByteDance Seed
Overview
ReleasedAug 26, 2026 Feb 2026
Open weightsYes —
Specs
Context1M 256K
Max output128K 128K
Input modalitiesText, Image, Video Text, Image, Audio, Video
Output modalitiesText Text
ReasoningYes Yes
Reasoning effortslow, high, max minimal, low, medium, high
Reasoning can be off— Yes
Tool useYes Yes
Structured outputYes Yes
Pricing · per 1M tokens
Input price$0.15 $0.10Also priced under other conditions: Audio tokens, Prompts over 128K tokens, Flex tier, Batch
Output price$0.50 $0.40Also priced under other conditions: Prompts over 128K tokens, Flex tier, Batch
Cache read price$0.030 $0.020Also priced under other conditions: Audio tokens, Prompts over 128K tokens, Flex tier, Batch
Blended price (3 input : 1 output)$0.2375 $0.175
Pricing under conditions · per 1M tokens
Input price, long promptsNot offered $0.20Prompts over 128K tokens
Output price, long promptsNot offered $0.80Prompts over 128K tokens
Batch input priceNot offered $0.050Batch
Batch output priceNot offered $0.20Batch
Flex tier input priceNot offered $0.050Flex tier
Flex tier output priceNot offered $0.20Flex tier
Cited scores
Epoch Capabilities Index153.6 —
LMArena Text1,477 —
LMArena Text · Coding1,526 —
LMArena Vision1,294 —
LMArena Text · Chinese1,530 —
Epoch AI · GPQA Diamond90.2% max effort—
Epoch AI · FrontierMath Tiers 1–355.8% max effort—

Headline prices may come from different channels, regions or tiers. Check each source before choosing a model; missing facts stay blank.

Model details and sources

Cited scores