API cost decision in 10 seconds

NewGPT-6 Astra (batch) vs GLM Latest

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 $2.9 vs $17.5 for GPT-6 Astra (batch), saving $14.6 (83.4% lower).

Cost-first pickGLM Latest
Context-first pickGLM Latest
Sample savings$14.683.4%
10x traffic gap$146

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 $146. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

GLM Latest stays cheaper across input-heavy, balanced, and output-heavy sample workloads.

Workload shapeToken mixBetter pickGPT-6 Astra (batch)GLM Latest
Input-heavy / RAG5M input + 500K outputGLM Latest$37.5$7.5
Balanced workload1M input + 1M outputGLM Latest$30$4.65
Output-heavy chatbot1M input + 5M outputGLM Latest$130$18.65
Cheaper input GLM Latest $5 vs $1.15 / 1M

GLM Latest is $3.85 cheaper per 1M input tokens (77% lower; 4.35x difference).

Cheaper output GLM Latest $25 vs $3.5 / 1M

GLM Latest is $21.5 cheaper per 1M output tokens (86% lower; 7.14x difference).

Larger context GLM Latest 1.05M vs 1.31M

GLM Latest has 260.72K more context (1.25x larger).

Sample workload GLM Latest $17.5 vs $2.9

GLM Latest is $14.6 cheaper on the standard workload (83.4% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.
GPT-6 Astra (batch) Calculating… Estimated API cost
GLM Latest Calculating… Estimated API cost
Cheaper for this workload Calculating… Difference: calculating…

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

Verdict

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 $17.5 for GPT-6 Astra (batch) and $2.9 for GLM Latest.

Best Fit

Choose GPT-6 Astra (batch) when its provider, model quality, latency, or availability is more important than the numeric price/context winner.

Choose GLM Latest when you care most about lower input-token price, lower output-token price, and larger context window.

Decision Notes
  • On the standard 1M input plus 500K output workload, GLM Latest is estimated at $2.9 vs $17.5 for GPT-6 Astra (batch), saving $14.6 (83.4% lower).
  • GLM Latest is $14.6 cheaper on the standard workload (83.4% lower).
  • GLM Latest is $3.85 cheaper per 1M input tokens (77% lower; 4.35x difference).
  • GLM Latest is $21.5 cheaper per 1M output tokens (86% lower; 7.14x difference).
  • GLM Latest has 260.72K more context (1.25x larger).
Head-to-Head Specs
FeatureNewGPT-6 Astra (batch)
(OpenAI)		GLM Latest
(Z.ai)
Input Price
prompt tokens per 1M		$5$1.15
Completion Price
per 1M tokens		$25$3.5
Sample Workload Cost
1M input + 500K output		$17.5$2.9
Context Window1.05M1.31M
Release Date

Use-Case Decision Matrix

Use caseBetter pickWhy
Budget-constrained productionGLM LatestOn the standard 1M input plus 500K output workload, GLM Latest is estimated at $2.9 vs $17.5 for GPT-6 Astra (batch), saving $14.6 (83.4% lower).
High-volume input processingGLM LatestLower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbotsGLM LatestLower output-token price matters most when assistants generate many completion tokens.
RAG or long-document workGLM LatestA larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps
  • gpt-oss-120b (free) can replace GPT-6 Astra (batch) when lower sample workload cost matters most: $0.
  • gpt-oss-20b (free) can replace GPT-6 Astra (batch) when lower sample workload cost matters most: $0.
  • gpt-oss-20b can replace GPT-6 Astra (batch) when lower sample workload cost matters most: $0.1.
  • gpt-oss-120b can replace GPT-6 Astra (batch) when lower sample workload cost matters most: $0.12.
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OpenAI catalog

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Z.ai catalog

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GPT-6 Astra (batch)

GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon...

GLM Latest

This model always redirects to the latest GLM model from Z.ai.