GLM 5V Turbo vs Claude Sonnet 4.5

API pricing, benchmark indices and specs — updated 19 October 2026.

z-ai · A · API-only
Input / 1M
$1.20
Output / 1M
$4.00
AA index
23.5
proprietary · 202.8K context
anthropic · B · API-only
Input / 1M
$3.00
Output / 1M
$15.00
AA index
20.7
proprietary · 1M context

Specification comparison

Differences are highlighted; identical values are muted.

Specification GLM 5V Turbo Claude Sonnet 4.5
Deployment API-only (closed weights) API-only (closed weights)
Parameters n/a — API-only n/a — API-only
Architecture n/a — API-only n/a — API-only
Context length 202,752 1,000,000
Licence Proprietary Proprietary
Commercial use Per API terms Per API terms
Languages n/a — API-only n/a — API-only
Downloads 30d n/a — API-only n/a — API-only
Downloads all time n/a — API-only n/a — API-only
Quantizations on the Hub n/a — API-only n/a — API-only
Gated n/a — API-only n/a — API-only
First seen on the Hub n/a — API-only n/a — API-only
API input price / 1M tokens $1.20 $3.00
API output price / 1M tokens $4.00 $15.00
Est. cost per 1M input + 1M output tokens $5.20 $18.00
Cached input / 1M tokens $0.24 $0.30
AA Intelligence Index 23.5 20.7
AA Coding Index — 52.1
AA Agentic Index — 15.8
Max output tokens 131,072 64,000
API providers 1 5
Tool calling Yes Yes
Reasoning mode Yes Yes

API cost

Estimated cost of 1M input + 1M output tokens via OpenRouter

GLM 5V Turbo $5.20
Claude Sonnet 4.5 $18.00

GLM 5V Turbo is 3.5× cheaper at list price.

Adjacent comparisons