GPT-4o Search Preview vs GLM 4.5
| Signal | GPT-4o Search Preview | Delta | GLM 4.5 |
|---|---|---|---|
Capabilities | 50 | -17 | |
Benchmarks | 72 | +4 | |
Pricing | 90 | -8 | |
Context window size | 73 | 0 | |
Recency | 44 | -24 | |
Output Capacity | 70 | -13 | |
| Overall Result | 1 wins | of 6 | 5 wins |
Score History
68.7
current score
GPT-4o Search Preview
right now
68.3
current score
GPT-4o Search Preview
OpenAI
GLM 4.5
Zhipu AI
GLM 4.5 saves you $580.00/month
That's $6960.00/year compared to GPT-4o Search Preview at your current usage level of 100K calls/month.
| Metric | GPT-4o Search Preview | GLM 4.5 | Winner |
|---|---|---|---|
| Overall Score | 69 | 68 | GPT-4o Search Preview |
| Rank | #111 | #112 | GPT-4o Search Preview |
| Quality Rank | #111 | #112 | GPT-4o Search Preview |
| Adoption Rank | #111 | #112 | GPT-4o Search Preview |
| Parameters | -- | -- | -- |
| Context Window | 128K | 131K | GLM 4.5 |
| Pricing | $2.50/$10.00/M | $0.60/$2.20/M | -- |
| Signal Scores | |||
| Capabilities | 50 | 67 | GLM 4.5 |
| Benchmarks | 72 | 68 | GPT-4o Search Preview |
| Pricing | 90 | 98 | GLM 4.5 |
| Context window size | 73 | 73 | GLM 4.5 |
| Recency | 44 | 68 | GLM 4.5 |
| Output Capacity | 70 | 83 | GLM 4.5 |
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 69/100 (rank #111), placing it in the top 62% of all 290 models tracked.
Scores 68/100 (rank #112), placing it in the top 62% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Choose GPT-4o Search Preview when you need:
- Budget-friendly applications with moderate quality requirements
Choose GLM 4.5 when you need:
- High-volume production workloads where API costs must be minimized
- Agentic applications using tool/function calling
- Step-by-step reasoning and chain-of-thought problem solving
- Self-hosted deployments where you need full control over the model
GLM 4.5 offers 78% better value per quality point. At 1M tokens/day, you'd spend $42.00/month with GLM 4.5 vs $187.50/month with GPT-4o Search Preview - a $145.50 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
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. GLM 4.5 also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (131K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($2.20/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (69/100) correlates with better nuance, coherence, and style in long-form content
GPT-4o Search Preview and GLM 4.5 are extremely close in overall performance (only 0.4000000000000057 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
By Use Case
Best for Quality
GPT-4o Search Preview
Marginally better benchmark scores; both are excellent
Best for Cost
GLM 4.5
78% lower pricing; better value at scale
Best for Reliability
GPT-4o Search Preview
Higher uptime and faster response speeds
Best for Prototyping
GPT-4o Search Preview
Stronger community support and better developer experience
Best for Production
GPT-4o Search Preview
Wider enterprise adoption and proven at scale
by OpenAI
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | GPT-4o Search Preview | GLM 4.5 |
|---|---|---|
| Vision (Image Input) | ||
| Function Callingdiffers | ||
| Streaming | ||
| JSON Mode | ||
| Reasoningdiffers | ||
| Web Searchdiffers | ||
| Image Output |
GPT-4o Search Preview
OpenAI
GLM 4.5
Zhipu AI
GLM 4.5 saves you $12.78/month
That's 77% cheaper than GPT-4o Search Preview 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-4o Search Preview | GLM 4.5 |
|---|---|---|
| Context Window | 128K | 131K |
| Max Output Tokens | 16,384 | 98,304 |
| Open Source | No | Yes |
| Created | Mar 12, 2025 | Jul 25, 2025 |