Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, Z.ai: GLM 5V Turbo delivers higher overall intelligence and human-preferred responses (Elo 1,475 vs 1,272), while Z.ai: GLM 5V Turbo leads in SWE-bench software engineering benchmarks (65.2%), while GPT-4o mini is more budget-friendly at $0.6/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
9 benchmarks evaluated across capability, speed, and cost
Auto-discovered from OpenRouter (z-ai/glm-5v-turbo). Preview until a second source matches.
Legacy small OpenAI model. Useful as a cheap baseline.
Δ 203 Arena Elo pts
160 tok/s
$0.6 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.
Category wins across reasoning intelligence, generation speed, and token cost.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
| Benchmark | Z.ai: GLM 5V Turbo | GPT-4o mini | Advantage Delta |
|---|---|---|---|
| Preference Elo | +203 | ||
| Coding Elo | — | — | |
| LiveBench | +15.7% | ||
| SWE-bench | +24% | ||
| GPQA Diamond | +17.3% | ||
| Time to first token | +50 ms | ||
| Output speed | 112 tok/s | 160 tok/s | +48 tok/s |
| Input price | $1.2/1M | $0.15/1M | +$1.05/1M |
| Output price | $0.6/1M | +$3.4/1M | |
| Context window | +75k |
Simulate monthly production API costs in USD (US Dollar).
GPT-4o mini is estimated to save $87.75/month ($1,053/year).
Higher SWE-bench (65.2%).
Lower output list price ($0.6/1M).
Lower TTFT (130 ms).
Larger window (203k).
Both accept images. Defaulting to the higher-Elo side (Z.ai: GLM 5V Turbo).
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Z.ai: GLM 5V Turbo | Higher SWE-bench (65.2%). |
| High-volume chat | GPT-4o mini | Lower output list price ($0.6/1M). |
| Voice / low-latency UI | GPT-4o mini | Lower TTFT (130 ms). |
| Long-document RAG | Z.ai: GLM 5V Turbo | Larger window (203k). |
| Screenshots / vision | Z.ai: GLM 5V Turbo | Both accept images. Defaulting to the higher-Elo side (Z.ai: GLM 5V Turbo). |
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Verified Head-to-Head Telemetry
