GLM Latest is $8.6 cheaper per 1M input tokens (86% lower; 7.14x difference).
API cost decision in 10 seconds
NewGLM Latest vs Claude Opus 5 (Fast)
Pick GLM Latest when budget and context both matter.
Page updated:
Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick GLM Latest when budget and context both matter.
On the standard 1M input plus 500K output workload, GLM Latest is estimated at $3.6 vs $35 for Claude Opus 5 (Fast), saving $31.4 (89.7% lower).
Cost-first pickGLM Latest
Context-first pickGLM Latest
Sample savings$31.489.7%
10x traffic gap$314
GLM Latest is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $314. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
GLM Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | GLM Latest | Claude Opus 5 (Fast) |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | GLM Latest | $9.2 | $75 |
| Balanced workload | 1M input + 1M output | GLM Latest | $5.8 | $60 |
| Output-heavy chatbot | 1M input + 5M output | GLM Latest | $23.4 | $260 |
GLM Latest is $45.6 cheaper per 1M output tokens (91.2% lower; 11.4x difference).
GLM Latest has 48.58K more context (1.05x larger).
GLM Latest is $31.4 cheaper on the standard workload (89.7% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
GLM Latest has the lower input price; GLM Latest has the lower output price; GLM Latest offers the larger context window. For the 1M input plus 500K output sample, GLM Latest is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $3.6 for GLM Latest and $35 for Claude Opus 5 (Fast).
Choose GLM Latest when you care most about lower input-token price, lower output-token price, and larger context window.
Choose Claude Opus 5 (Fast) when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
- On the standard 1M input plus 500K output workload, GLM Latest is estimated at $3.6 vs $35 for Claude Opus 5 (Fast), saving $31.4 (89.7% lower).
- GLM Latest is $31.4 cheaper on the standard workload (89.7% lower).
- GLM Latest is $8.6 cheaper per 1M input tokens (86% lower; 7.14x difference).
- GLM Latest is $45.6 cheaper per 1M output tokens (91.2% lower; 11.4x difference).
- GLM Latest has 48.58K more context (1.05x larger).
| Feature | NewGLM Latest (Z.ai) | Claude Opus 5 (Fast) (Anthropic) |
|---|---|---|
| Input Price prompt tokens per 1M | $1.4 | $10 |
| Completion Price per 1M tokens | $4.4 | $50 |
| Sample Workload Cost 1M input + 500K output | $3.6 | $35 |
| Context Window | 1.05M | 1M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | GLM Latest | On the standard 1M input plus 500K output workload, GLM Latest is estimated at $3.6 vs $35 for Claude Opus 5 (Fast), saving $31.4 (89.7% lower). |
| High-volume input processing | GLM Latest | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | GLM Latest | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | GLM Latest | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- GLM 5.2 (free) can replace GLM Latest when lower sample workload cost matters most: $0.
- GLM 4.5 Air (free) can replace GLM Latest when lower sample workload cost matters most: $0.
- GLM 4 32B can replace GLM Latest when lower sample workload cost matters most: $0.15.
- GLM 4.7 Flash can replace GLM Latest when lower sample workload cost matters most: $0.26.
- Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- DeepSeek V4 Flash 0731 offers 1.31M context with $0.17 sample workload cost.
- DeepSeek V4 Flash Latest offers 1.31M context with $0.11 sample workload cost.
- DeepSeek V4 Flash 0731 · DeepSeek · #1
- MiMo-V2.5 · Xiaomi · #2
- Hy3 · Tencent · #3
- Ox Alpha · stealth · #4
Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
Open cheapest modelsLarger context alternatives
Find models with larger context windows for RAG, long documents, and codebase review.
Open largest context modelsProvider catalogs
Compare models within provider hubs before choosing a final API vendor.
Open provider hubsZ.ai catalog
Review all tracked Z.ai models before deciding whether this matchup is the right shortlist.
Open Z.ai modelsAnthropic catalog
Check other Anthropic models with comparable pricing, context, or release timing.
Open Anthropic modelsThis model always redirects to the latest GLM model from Z.ai.
Fast-mode variant of [Opus 5](/anthropic/claude-opus-5) - identical capabilities with higher output speed at 2x pricing relative to regular Opus 5. Learn more in Anthropic's docs: https://platform.claude.com/docs/en/build-with-claude/fast-mode