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Claude Fable 5.1 vs Gemini 3.1 Pro: price
Gemini 3.1 Pro is 4.4× cheaper than Claude Fable 5.1 for a typical chat workload (1,500 tokens in, 500 out).
| Item | Claude Fable 5.1 | Gemini 3.1 Pro |
|---|---|---|
| Input per 1M tokens | $10.00 | $2.00 |
| Output per 1M tokens | $50.00 | $12.00 |
| Cached input per 1M | $0.25 | $0.20 |
| 1,000 chat messages1,500 tokens in, 500 out each | $40.00 | $9.00 |
| Summarize a 50-page PDF30,000 tokens in, 1,000 out | $0.35 | $0.072 |
| One coding-agent task60,000 tokens in, 4,000 out, no caching | $0.80 | $0.168 |
List prices checked September 28, 2026. Price is half the story: see how people rate each one today.
Claude Fable 5.1 vs Gemini 3.1 Pro in numbers
Output, usually the bigger part of the bill, costs $50.00 on Claude Fable 5.1 and $12.00 on Gemini 3.1 Pro, so Gemini 3.1 Pro is 4.2× cheaper there. Input costs $10.00 versus $2.00 per million tokens. For a coding-agent task (60,000 tokens in, 4,000 out) that is $0.80 on Claude Fable 5.1 and $0.168 on Gemini 3.1 Pro. Claude Fable 5.1 accepts 1M tokens of context and Gemini 3.1 Pro 1.05M tokens. Claude Fable 5.1 came out on September 1, 2026 and Gemini 3.1 Pro on February 19, 2026.
Claude Fable 5.1 is made by Anthropic; Gemini 3.1 Pro by Google. Estimate your own bill for both in the cost calculator.
Which one feels dumber today?
- Claude Fable 5.1Anthropic
–no votes yet - Gemini 3.1 ProGoogle–no votes yet
Frequently asked questions
Is Claude Fable 5.1 or Gemini 3.1 Pro cheaper?
Gemini 3.1 Pro is 4.4× cheaper than Claude Fable 5.1 for a typical chat workload (1,500 tokens in, 500 out). Output, usually the bigger part of the bill, costs $50.00 on Claude Fable 5.1 and $12.00 on Gemini 3.1 Pro, so Gemini 3.1 Pro is 4.2× cheaper there.
Which is better, Claude Fable 5.1 or Gemini 3.1 Pro?
It depends on the task, and price is only part of it. Check how people rate each one today on the Claude Fable 5.1 and Gemini 3.1 Pro pages, and read what users report in Discussions.