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Doubao Seed 2.0 Pro vs GLM 5.2

Output tokens cost $2.41 per million on Doubao Seed 2.0 Pro and $3.94 per million on GLM 5.2. Input tokens cost $0.48 per million on Doubao Seed 2.0 Pro and $1.13 per million on GLM 5.2. Cached input tokens are billed at $0.10 per million on Doubao Seed 2.0 Pro and $0.28 per million on GLM 5.2. Context lengths are 256,000 tokens on Doubao Seed 2.0 Pro and 1,000,000 tokens on GLM 5.2. Time to first token (TTFT) measured on AIHubMix is 5.2s on Doubao Seed 2.0 Pro and 1.1s on GLM 5.2. Measured output throughput is 33.5 tok/s on Doubao Seed 2.0 Pro and 37.9 tok/s on GLM 5.2. On the LMArena coding leaderboard Doubao Seed 2.0 Pro scores 1511 and GLM 5.2 scores 1505.

ByteDanceDoubao Seed 2.0 ProZ.AIGLM 5.2
+ Add model · 2/4
ByteDance logo
Doubao Seed 2.0 Pro
ByteDance · text, image, video → text

Doubao flagship all-purpose general model, targeting complex reasoning and long-chain task execution scenarios in the Agent era. It emphasizes multimodal understanding, long-context reasoning, structured generation, and tool-augmented execution. It excels at handling complex instructions and multi-constraint execution, reliably addressing multi-step complex planning, intricate image-text reasoning, video content understanding, and high-difficulty analysis scenarios.

Input$0.48 /M
Output$2.41 /M
Details
Z.AI logo
GLM 5.2
Z.AI · text → text

GLM-5.2 is Z.ai’s flagship model for the era of long-horizon tasks. With a truly usable 1M-token context window, it can handle project-level engineering context, execute long-running tasks more reliably, follow engineering standards more consistently, and complete the full development workflow from requirements to multi-platform deployment in a single task.

Input$1.13 /M
Output$3.94 /M
Details

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Doubao Seed 2.0 Pro
GLM 5.2
Input /M
$0.48
$1.13
Output /M
$2.41
$3.94
Cache read /M
$0.10
$0.28
Context length
256,000
1,000,000
Max output
128,000
128,000
Time to First Token
5.2 s
1.1 s
Throughput
33.5 tok/s
37.9 tok/s
Modalities
textimagevideo
text
Supported Parameters
thinkingwebtoolsfunction callingstructured outputs
thinkingtoolsfunction callingstructured outputs
API Formats
chat_completions · claude_api
Released
-
June 16, 2026

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

doubao-seed-2-0-proglm-5.2

Tokens / day

-

Requests / day

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Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

doubao-seed-2-0-proglm-5.2

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

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LMArena Benchmarks

LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.

Text
doubao-seed-2-0-proglm-5.2
13801420146015001540
Overall
14551470
Coding
15051511
Math
14501475
Hard prompts
14791488
Instruction following
14341462
Multi-turn
14451470
Creative writing
14031450
Longer query
14521479
Chinese
15021516
English
14621477

Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.

Cost calculator

Estimate your monthly bill for the same workload on each model.

Doubao Seed 2.0 Pro
$65.10 /mo
GLM 5.2
$127 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Doubao Seed 2.0 Pro, GLM 5.2?

Doubao Seed 2.0 Pro: $2.41/M output tokens; GLM 5.2: $3.94/M. Use the cost calculator above to estimate your own workload.

How do their coding arena scores compare?

Doubao Seed 2.0 Pro: 1511; GLM 5.2: 1505 (LMArena coding leaderboard).

Which responds faster?

GLM 5.2: 1.1s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.

How large is each context window?

Doubao Seed 2.0 Pro accepts 256,000 and GLM 5.2 accepts 1,000,000 input tokens. Maximum output per request is 128,000 tokens on Doubao Seed 2.0 Pro and 128,000 tokens on GLM 5.2.

Which one generates tokens faster?

GLM 5.2 at 37.9 tok/s and Doubao Seed 2.0 Pro at 33.5 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.

What inputs and capabilities does each model support?

Doubao Seed 2.0 Pro accepts text, image and video input and supports thinking, web search, tool calling, function calling and structured outputs; GLM 5.2 accepts text input and supports thinking, tool calling, function calling and structured outputs.

Can I call Doubao Seed 2.0 Pro and GLM 5.2 with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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