Gemini 2.5 Pro vs GLM-5 Turbo
Complete pricing and performance comparison between Google's Gemini 2.5 Pro and Zhipu's GLM-5 Turbo.
Quick Verdict
Cheaper
GLM-5 Turbo
1.0x cheaper input, 2.5x cheaper output
Larger Context
Gemini 2.5 Pro
1.0M vs 200K
Pricing Comparison
| Spec | Gemini 2.5 Pro | GLM-5 Turbo | Difference |
|---|---|---|---|
| Provider | Zhipu | ||
| Input / 1M tokens | $1.25 | $1.2 | GLM-5 Turbo is 4% more expensive |
| Output / 1M tokens | $10 | $4 | GLM-5 Turbo is 60% more expensive |
| Context Window | 1.0M | 200K | 5x difference |
| Max Output | 66K | 128K |
Performance Benchmarks
| Metric | Gemini 2.5 Pro | GLM-5 Turbo | Winner |
|---|---|---|---|
| Quality Index | 35 | -- | N/A |
| Output Speed | 128 tok/s | -- | N/A |
| Value (Quality/$) | 27.7 | -- | Higher = better value |
Benchmark data from Artificial Analysis. Quality Index is a composite score across reasoning, coding, and knowledge tasks.
Cost at Scale
Estimated cost at different usage levels (3:1 input-to-output token ratio, typical for chat).
| Usage | Gemini 2.5 Pro | GLM-5 Turbo | Savings |
|---|---|---|---|
Single request 1K in / 300 out | $0.0042 | $0.0024 | GLM-5 Turbo saves $0.0018 |
10 requests 10K in / 3K out | $0.042 | $0.024 | GLM-5 Turbo saves $0.018 |
100 requests 100K in / 30K out | $0.425 | $0.240 | GLM-5 Turbo saves $0.185 |
1,000 requests 1M in / 300K out | $4.25 | $2.40 | GLM-5 Turbo saves $1.85 |
10,000 requests 10M in / 3M out | $42.50 | $24.00 | GLM-5 Turbo saves $18.50 |
1M requests/mo 1B in / 300M out | $4250.00 | $2400.00 | GLM-5 Turbo saves $1850.00 |
Pros & Cons
Gemini 2.5 Pro Strengths
- +Larger context window (1.0M vs 200K)
GLM-5 Turbo Strengths
- +Cheaper input tokens
- +Cheaper output tokens
- +Higher max output tokens
When to Use Each Model
Choose Gemini 2.5 Pro for
- →Long documents, large codebases, or multi-turn conversations
Choose GLM-5 Turbo for
- →Budget-conscious projects where cost is the primary factor
- →Generating long-form content or detailed code
Frequently Asked Questions
Which is cheaper, Gemini 2.5 Pro or GLM-5 Turbo?
For input tokens, GLM-5 Turbo is 1.0x cheaper at $1.2/1M tokens. For output tokens, GLM-5 Turbo is 2.5x cheaper at $4/1M tokens. At typical usage (1M input + 300K output), Gemini 2.5 Pro costs $4.25 vs GLM-5 Turbo at $2.40.
What's the context window difference?
Gemini 2.5 Pro supports 1.0M context (1,048,576 tokens), while GLM-5 Turbo supports 200K (200,000 tokens). Gemini 2.5 Pro can handle 5x more context in a single request.
Which model has better benchmarks?
When should I choose Gemini 2.5 Pro over GLM-5 Turbo?
Choose Gemini 2.5 Pro when you need: Larger context window (1.0M vs 200K). Choose GLM-5 Turbo when you need: Cheaper input tokens, Cheaper output tokens, Higher max output tokens.
How much would 10,000 API requests cost?
At 1K input + 300 output tokens per request (typical chat): Gemini 2.5 Pro = $42.50, GLM-5 Turbo = $24.00. At 10K input + 1K output per request (longer conversations): Gemini 2.5 Pro = $225.00, GLM-5 Turbo = $160.00.
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