GLM 5.1 API price

Last 90 days

Price changes

1. November 12, 2026input $1.40 → $1.33, output $4.40 → $4.18
2. October 29, 2026input $0.966 → $1.40, output $3.036 → $4.40
3. October 28, 2026input $1.40 → $0.966, output $4.40 → $3.036
4. October 22, 2026input $0.966 → $1.40, output $3.036 → $4.40
5. October 16, 2026input $1.33 → $0.966, output $4.18 → $3.036
6. October 15, 2026input $0.966 → $1.33, output $3.036 → $4.18
7. October 8, 2026input $1.40 → $0.966, output $4.40 → $3.036
8. October 4, 2026input $0.965 → $1.40, output $3.032 → $4.40
9. October 1, 2026input $1.40 → $0.965, output $4.40 → $3.032
10. September 28, 2026input $0.965 → $1.40, output $3.032 → $4.40
11. September 26, 2026input $0.966 → $0.965, output $3.036 → $3.032
12. August 31, 2026input $1.26 → $0.966, output $3.96 → $3.036
13. August 26, 2026input $0.966 → $1.26, output $3.036 → $3.96

What the numbers say

• Last price change on November 12, 2026: input $1.40 → $1.33, output $4.40 → $4.18 per million tokens.
• Input costs less than 27% of the 443 paid models we track.

Closest in price

• Gemini 2.5 ProGoogle$1.25 / $10.00
• Gemini 2.5 Pro Preview 06-05Google$1.25 / $10.00
• Muse Spark 1.1Meta$1.25 / $4.25
• Muse Spark 1.2Meta$1.25 / $4.25
• Muse Spark 1.3Meta$1.25 / $4.25
• Muse Spark OpenMeta$1.25 / $4.25