GPT-5.4 Mini vs GLM 5.2
At a Glance
| Compare |  GPT-5.4 MiniOpenAI |  GLM 5.2Z.ai |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #38 of 4620.2 score · 3/3 sources · complete | #23 of 4661.9 score · 2/3 sources · provisional · missing ARC-AGI-2 · full-core range 41.3–74.6 |
| CostLower is better · Published-token output estimate | #32 of 44$0.214 per LiveBench case | #12 of 44$0.056 per LiveBench case |
| EfficiencyHigher is better · MM Efficiency v1.5 | #38 of 3826.5 score · 3/3 sources · complete | #7 of 3861.3 score · 2/3 sources · provisional · missing ARC-AGI-2 · full-core range 51.0–67.6 |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $0.75Openai ↗ · Sep 3, 2026 | $0.75Deepinfra ↗ · Sep 23, 2026 |
| Output priceFrom · USD / 1M tokens | $4.50Openai ↗ · Sep 3, 2026 | $2.40Deepinfra ↗ · Sep 23, 2026 |
| Context windowMaximum documented tokens | 400K | 1,049K |
| Model facts checked | Sep 3, 2026View model evidence → | Aug 28, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
| Benchmark | GPT-5.4 Mini | GLM-5.2 |
|---|---|---|
| LMArena Text Arenatext-2026-09-13-d25aabda0010 · arena_rating · leader | 1,412.1196% of row best · rating · gpt-5.4-mini-high; 95% CI [1408.29499732, 1415.92580718]; votes 59387; rank 127 | 1,466.93100% of row best · rating · glm-5.2-max; 95% CI [1462.35303996, 1471.51268346]; votes 36798; rank 29 |
| LiveBench2026-06-25 · overall · leader | 69.5390% of row best · percent · gpt-5.4-mini-xhigh · 47,448 output tokens / case | 76.96100% of row best · percent · glm-5.2 · 23,463 output tokens / case |
| ToneBench2026-09-11-10-task-4ef099199c9c · overall_score · unverified | 82.16100% of row best · points · GPT-5.4 mini (high) · 9,924 output tokens / case | 82.14100% of row best · points · GLM-5.2 · 5,633 output tokens / case |
| Overall ResultCounted from the protocol-matched rows above | 0 benchmark wins | 2 benchmark winsOverall lead |
Third-party benchmark Only like-for-like primary-publisher results are shown; raw scores, relative scores, configuration, and token spend remain visible.
Side-by-Side Facts
| Field | GPT-5.4 Mini | GLM-5.2 |
|---|---|---|
| Developer | OpenAI | Z.ai |
| Family | Gpt 5 4 | Glm 5 2 |
| Model | GPT-5.4 Mini | GLM-5.2 |
| Version | GPT-5.4 Mini | GLM-5.2 |
| Lifecycle | active | active |
| Released | 2026-03-17 | Unknown |
| Knowledge cutoff | 2025-08-31 | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 400K | 1,049K |
| Total parameters | Unknown | 753.3B |
| Active parameters | Unknown | Unknown |
| License | Unknown | mit |
| Open weights | No | Yes |
| API available | Yes | Yes |
| Self-hostable | No | Yes |
| Provider access | Openai (Standard), Openrouter (Standard) | Deepinfra (Standard), Fireworks Ai (Standard), Hugging Face (Standard), Openrouter (Standard), Together Ai (Standard) |
| Capabilities | chat, generation, reasoning, structured_outputs, tools | chat, generation, reasoning, tools |
GPT-5.4 Mini Capabilities
GLM 5.2 Capabilities
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Primary Evidence
Sources and Freshness
Questions
GPT-5.4 Mini vs GLM 5.2 FAQs
Is GPT-5.4 Mini or GLM 5.2 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both GPT-5.4 Mini and GLM 5.2, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, GPT-5.4 Mini or GLM 5.2?+
GPT-5.4 Mini is $0.75 and GLM 5.2 is $0.75 per million tokens, so they are tied on this metric. GPT-5.4 Mini is $4.50 and GLM 5.2 is $2.40 per million tokens, so GLM 5.2 is cheaper on this metric.
Which has a larger context window, GPT-5.4 Mini or GLM 5.2?+
GLM 5.2 has the larger sourced context window. GPT-5.4 Mini supports 400K and GLM 5.2 supports 1,049K.
Which performs better in benchmarks, GPT-5.4 Mini or GLM 5.2?+
GLM 5.2 leads the current overall benchmark count. The result uses 2 protocol-matched benchmarks from 2 publishers; it is not a universal quality score.
Can GPT-5.4 Mini or GLM 5.2 be self-hosted?+
GLM 5.2 is the only model in this pair currently marked as self-hostable. GPT-5.4 Mini is not marked open weight; GLM 5.2 is open weight.
Can GPT-5.4 Mini and GLM 5.2 understand images?+
GPT-5.4 Mini is documented with image input; GLM 5.2 is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, GPT-5.4 Mini or GLM 5.2?+
Neither has a larger sourced maximum output. GPT-5.4 Mini is 128K and GLM 5.2 is —.
Do GPT-5.4 Mini and GLM 5.2 support reasoning and tool use?+
GPT-5.4 Mini: reasoning, tool calling, and image input. GLM 5.2: reasoning and tool calling. Feature support does not establish relative quality.
Which is available from more inference providers, GPT-5.4 Mini or GLM 5.2?+
GPT-5.4 Mini has 2 sourced provider routes; GLM 5.2 has 5, so GLM 5.2 has broader tracked availability.
Which offers better value, GPT-5.4 Mini or GLM 5.2?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.