Secondary comparisonPrice Data Last Verified: June 23, 2026

Gemini 3.1 Pro vs GLM-4.7: AI API Cost Comparison (2026)

GLM-4.7 is the safer default for most buyers here. It creates the cleaner cost story, and the savings gap is meaningful enough that you should only move to Gemini 3.1 Pro if you have a clear quality reason.

Wins: Standard request costWins: High-volume spendWins: Context window

Standard request winner

GLM-4.7

Saves about 80% versus the pricier option for the baseline request shape.

Scale winner

GLM-4.7

Saves about 80% once usage becomes a recurring operating expense.

Default recommendation

GLM-4.7

Best starting point for most buyers unless you already know you need the premium alternative.

Option A

Gemini 3.1 Pro

Google AI

Google AI1M contextBest for complex reasoningReleased 2026-02
Input
$2.00
Output
$12.00
Context
1M

Best fit

  • Long-context workflows like document review or repo-scale analysis.
  • Harder reasoning, research, or premium quality requests.

Watch-outs

  • Costs compound faster when traffic or output length scales up.
  • Premium capability is harder to justify for routine or repetitive tasks.

Option B

GLM-4.7

Zhipu AI

Recommended default
Zhipu AI128K contextBest value for moneyReleased 2026-05
Input
$0.60
Output
$2.20
Context
128K

Best fit

  • Teams optimizing for lower blended cost per request.

Watch-outs

  • You may need to chunk prompts sooner on long-context workloads.

Decision scenarios

What we would choose for different teams

This reframes the comparison around real buying situations, not just benchmark curiosity.

Budget-first pick

Choose GLM-4.7 for lower-cost requests

GLM-4.7 wins the standard request scenario, so it is the safer default if you are still validating usage and want cheaper per-call economics.

Scale decision

Choose GLM-4.7 when usage multiplies

GLM-4.7 stays ahead in the high-volume scenario, which matters most once the workload becomes a real operating expense instead of a prototype line item.

Capability-first pick

Choose Gemini 3.1 Pro if quality is the main constraint

Gemini 3.1 Pro has the stronger capability signal across context, positioning, and premium model attributes. Pick it when reasoning depth or delivery quality matters more than raw token cost.

Decision matrix

Input cost / 1M

Lower is better if prompt volume is the main driver.

GLM-4.7 wins

Gemini 3.1 Pro

$2.00

GLM-4.7

$0.60

Output cost / 1M

Lower is better for chat, generation, and verbose outputs.

GLM-4.7 wins

Gemini 3.1 Pro

$12.00

GLM-4.7

$2.20

Standard request total

Based on 10,000 input and 10,000 output tokens.

GLM-4.7 wins

Gemini 3.1 Pro

$0.14

GLM-4.7

$0.028

Context window

Higher is better when you need fewer prompt-chunking compromises.

Gemini 3.1 Pro wins

Gemini 3.1 Pro

1M

GLM-4.7

128K

Scenario math

Standard request

10,000 input / 10,000 output tokens

Gemini 3.1 Pro

$0.14

$0.02 input + $0.12 output

GLM-4.7

$0.028

$0.006 input + $0.022 output

High-volume scenario

2M input / 2M output tokens

Gemini 3.1 Pro

$28.00

GLM-4.7

$5.60

At scale, the cheaper option saves roughly 80% if your workload shape stays similar.

About the methodology

Cost estimates are generated from published input and output token rates for each provider. We apply identical token scenarios to both models so the result reflects pricing differences first, then layer on context and product-positioning signals to make the page more decision-ready. This page should help you narrow the choice quickly, but final selection should still be validated against your own prompts, quality bar, and latency requirements.

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Go Deeper

Read the model-selection guides behind this comparison