Compare · ModelsLive · 2 picked · head to head
GLM 5.2 vs Step 3.5 Flash
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GLM 5.2 wins on 3/4 benchmarks
GLM 5.2 wins 3 of 4 shared benchmarks. Leads in speed · arena.
Category leads
speed·GLM 5.2arena·GLM 5.2
Hype vs Reality
Attention vs performance
GLM 5.2
#11 by perf·no signal
Step 3.5 Flash
#9 by perf·#11 by attention
Best value
Step 3.5 Flash
12.6x better value than GLM 5.2
GLM 5.2
30.5 pts/$
$2.50/M
Step 3.5 Flash
384.5 pts/$
$0.20/M
Vendor risk
Mixed exposure
One or more vendors flagged
z-ai
private · undisclosed
StepFun
$5.0B·Tier 1
Head to head
4 benchmarks · 2 models
GLM 5.2Step 3.5 Flash
Artificial Analysis · Agentic Index
Step 3.5 Flash leads by +8.9
Artificial Analysis Agentic Index · a composite score measuring how well a model performs in agentic workflows · multi-step tool use, planning, error recovery, and autonomous task completion. Aggregates results from multiple agentic benchmarks including SWE-bench, tool-use tests, and planning evaluations. The canonical single-number metric for "how good is this model as an agent?"
GLM 5.2
43.1
Step 3.5 Flash
52.0
Artificial Analysis · Coding Index
GLM 5.2 leads by +37.1
Artificial Analysis Coding Index · a composite score that aggregates performance across multiple coding benchmarks into a single index. Tracks code generation quality, debugging ability, multi-language competence, and real-world software engineering tasks. Used by Artificial Analysis to rank model coding capability in a normalized, comparable format. Useful for developers choosing between models for coding-heavy workloads.
GLM 5.2
68.8
Step 3.5 Flash
31.6
Artificial Analysis · Quality Index
GLM 5.2 leads by +13.3
GLM 5.2
51.1
Step 3.5 Flash
37.8
Chatbot Arena Elo · Overall
GLM 5.2 leads by +75.8
GLM 5.2
1471.0
Step 3.5 Flash
1395.2
Full benchmark table
| Benchmark | GLM 5.2 | Step 3.5 Flash |
|---|---|---|
Artificial Analysis · Agentic Index Artificial Analysis Agentic Index · a composite score measuring how well a model performs in agentic workflows · multi-step tool use, planning, error recovery, and autonomous task completion. Aggregates results from multiple agentic benchmarks including SWE-bench, tool-use tests, and planning evaluations. The canonical single-number metric for "how good is this model as an agent?" | 43.1 | 52.0 |
Artificial Analysis · Coding Index Artificial Analysis Coding Index · a composite score that aggregates performance across multiple coding benchmarks into a single index. Tracks code generation quality, debugging ability, multi-language competence, and real-world software engineering tasks. Used by Artificial Analysis to rank model coding capability in a normalized, comparable format. Useful for developers choosing between models for coding-heavy workloads. | 68.8 | 31.6 |
Artificial Analysis · Quality Index | 51.1 | 37.8 |
Chatbot Arena Elo · Overall | 1471.0 | 1395.2 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $1.00 | $4.00 | 1.0M tokens (~524 books) | $17.50 | |
| $0.10 | $0.30 | 262K tokens (~131 books) | $1.50 |