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Kimi K3 vs Claude Fable 5
Of the 2 public leaderboards that rate both, Kimi K3 scores higher on 1 and Claude Fable 5 on 1. On the ArtificialWatch Index, which takes the median of each model's percentile across the boards that score it, Kimi K3 is at 27.1 and Claude Fable 5 at 60.4 (out of 100). On each maker's API, Kimi K3 costs $3 / $15 per 1M tokens (input / output) and Claude Fable 5 $10 / $50.
Scores as published by each board; table composed November 7, 2026.
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Leaderboard by leaderboard
| Board | Kimi K3 | Claude Fable 5 | Higher |
|---|---|---|---|
| LMArena Elo (community votes) | 1,656.5 | 1,625 | Kimi K3 |
| SimpleBench AVG@5 % (private set) | 60.7 | 81.9 | Claude Fable 5 |
Raw scores are each board's own scale, so compare within a row, not across rows. Full table: the bench index.
For coding
On the ArtificialWatch coding index, Kimi K3 is at 66 (#16 of 45) and Claude Fable 5 at 88.1 (#5). Claude Fable 5 scores higher on both coding boards that rate them.
| Coding board | Kimi K3 | Claude Fable 5 |
|---|---|---|
| LMArena · Coding | 1,506.5 | 1,518.7 |
| Vals Vibe Code Bench | 85 | 90.4 |
Kimi K3 at a glance
- Developer
- Moonshot
- Status
- Live since July 15, 2026
- API price
- $3 input / $15 output per 1M tokens · Moonshot AI, kimi-k3
- Context window
- 1.05M tokens
Live — dropped Jul 15 · 2.8T · open weights landed Jul 27 (1.56 TB, MXFP4).
Kimi K3, day one: impressive, expensive, and a little slow
2026-07-16 · Kimi K3 has been live for a day, and the picture forming is more interesting than the launch-night hype. Here's everything we're seeing so far.
Claude Fable 5 at a glance
- Developer
- Anthropic
- Status
- Live since July 1, 2026
- API price
- $10 input / $50 output per 1M tokens · Anthropic, claude-fable-5
- Context window
- 1M tokens
Returned Jul 1.
Kimi K3 vs Claude Fable 5: quick answers
Which is better, Kimi K3 or Claude Fable 5?
It depends on what you measure. Of the 2 public leaderboards that rate both, Kimi K3 scores higher on 1 and Claude Fable 5 on 1. Kimi K3's widest lead is on LMArena; Claude Fable 5's widest lead is on SimpleBench. On the ArtificialWatch Index, which takes the median of each model's percentile across the boards that score it, Kimi K3 is at 27.1 and Claude Fable 5 at 60.4 (out of 100).
Which is newer, Kimi K3 or Claude Fable 5?
Kimi K3. It went live on July 15, 2026, 14 days after Claude Fable 5 (July 1, 2026).
Which is cheaper, Kimi K3 or Claude Fable 5?
Kimi K3 is cheaper on both input and output. On each vendor's own API, Kimi K3 is $3 input / $15 output per million tokens and Claude Fable 5 is $10 input / $50 output per million tokens. Prices as published in the models.dev catalog, as of 2026-11-07.
Which has the bigger context window, Kimi K3 or Claude Fable 5?
Kimi K3, at 1.05M tokens against Claude Fable 5's 1M, as each vendor lists it.
How do Kimi K3 and Claude Fable 5 compare for coding?
On the ArtificialWatch coding index, Kimi K3 is at 66 (#16 of 45) and Claude Fable 5 at 88.1 (#5). Claude Fable 5 scores higher on both coding boards that rate them.
Who makes Kimi K3 and Claude Fable 5?
Kimi K3 is from Moonshot; Claude Fable 5 is from Anthropic.
Where do these numbers come from?
Each score is the leaderboard's own published figure, read by ArtificialWatch (table composed November 7, 2026). Boards measure different things, so raw scores are only comparable within a row.
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