| Signal | GPT-5.4 | Delta | GLM 5.1 |
|---|---|---|---|
Capabilities | 100 | +33 | |
Benchmarks | 90 | +16 | |
Pricing | 85 | -11 | |
Context window size | 96 | +11 | |
Recency | 100 | -- | |
Output Capacity | 85 | +65 | |
| Overall Result | 4 wins | of 6 | 1 wins |
Score History
91.9
current score
GPT-5.4
right now
74.3
current score
OpenAI
Zhipu AI
GLM 5.1 saves you $676.00/month
That's $8112.00/year compared to GPT-5.4 at your current usage level of 100K calls/month.
| Metric | GPT-5.4 | GLM 5.1 | Winner |
|---|---|---|---|
| Overall Score | 92 | 74 | GPT-5.4 |
| Rank | #2 | #50 | GPT-5.4 |
| Quality Rank | #2 | #50 | GPT-5.4 |
| Adoption Rank | #2 | #50 | GPT-5.4 |
| Parameters | -- | -- | -- |
| Context Window | 1050K | 203K | GPT-5.4 |
| Pricing | $2.50/$15.00/M | $1.26/$3.96/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 67 | GPT-5.4 |
| Benchmarks | 90 | 74 | GPT-5.4 |
| Pricing | 85 | 96 | GLM 5.1 |
| Context window size | 96 | 84 | GPT-5.4 |
| Recency | 100 | 100 | GPT-5.4 |
| Output Capacity | 85 | 20 | GPT-5.4 |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 92/100 (rank #2), placing it in the top 100% of all 290 models tracked.
Scores 74/100 (rank #50), placing it in the top 83% of all 290 models tracked.
GPT-5.4 has a 18-point advantage, which typically translates to noticeably stronger performance on complex reasoning, code generation, and multi-step tasks.
GLM 5.1 offers 70% better value per quality point. At 1M tokens/day, you'd spend $78.30/month with GLM 5.1 vs $262.50/month with GPT-5.4 - a $184.20 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Higher benchmark score (0/100) indicates stronger performance on coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Faster response time (speed score 0/100) is critical for user-facing chat. GLM 5.1 also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1050K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($3.96/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (92/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
GPT-5.4 clearly outperforms GLM 5.1 with a significant 17.60000000000001-point lead. For most general use cases, GPT-5.4 is the stronger choice. However, GLM 5.1 may still excel in niche scenarios.
Best for Quality
GPT-5.4
Marginally better benchmark scores; both are excellent
Best for Cost
GLM 5.1
70% lower pricing; better value at scale
Best for Reliability
GPT-5.4
Higher uptime and faster response speeds
Best for Prototyping
GPT-5.4
Stronger community support and better developer experience
Best for Production
GPT-5.4
Wider enterprise adoption and proven at scale
by OpenAI
| Capability | GPT-5.4 | GLM 5.1 |
|---|---|---|
| Vision (Image Input)differs | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Searchdiffers | ||
| Image Output |
OpenAI
Zhipu AI
GLM 5.1 saves you $15.48/month
That's 69% cheaper than GPT-5.4 at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | GPT-5.4 | GLM 5.1 |
|---|---|---|
| Context Window | 1.1M | 203K |
| Max Output Tokens | 128,000 | -- |
| Open Source | No | Yes |
| Created | Mar 5, 2026 | Apr 7, 2026 |
GPT-5.4 scores 92/100 (rank #2) compared to GLM 5.1's 74/100 (rank #50), giving it a 18-point advantage. GPT-5.4 is the stronger overall choice, though GLM 5.1 may excel in specific areas like cost efficiency.
GPT-5.4 is ranked #2 and GLM 5.1 is ranked #50 out of 290+ AI models. Rankings use a composite score combining benchmark performance (90%) from MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations, with capabilities and context window as tiebreakers (10%). Scores update hourly.
GLM 5.1 is cheaper at $3.96/M output tokens vs GPT-5.4's $15.00/M output tokens - 3.8x more expensive. Input token pricing: GPT-5.4 at $2.50/M vs GLM 5.1 at $1.26/M.
GPT-5.4 has a larger context window of 1,050,000 tokens compared to GLM 5.1's 202,752 tokens. A larger context window means the model can process longer documents and conversations.