Alternatives
What are the alternatives to Claude Sonnet 5.5?
Claude Sonnet 5.5 ranks 5 of 94 in the overall index and costs $4 per million tokens.
DeepSeek V4.1 Flash 1017: The best model with open weights, weaker: 106.7 vs. 121.8 in the overall index.
- Alternatives
- 1
- Overall index rank
- 5
- Data as of
- Nov 10, 2026
The alternatives by reason
Every card names the values it rests on. A model appears only once.
With open weights
DeepSeek V4.1 Flash 1017
The best model with open weights, weaker: 106.7 vs. 121.8 in the overall index.
- Overall index
- 106.7
- Price (3:1)
- $0.26
- Speed
- 126
Rank 20 · Middle group
Head to head: Claude Sonnet 5.5 vs. DeepSeek V4.1 Flash 1017Open the profile
The models around Claude Sonnet 5.5
The nearest generally available models by overall index, with rank, price and speed. Models with limited access and retired models are left out.
| Rank | Model | Overall index | Price (3:1) | Speed |
|---|---|---|---|---|
| 3 | Claude Opus 5.5 | 125.6 | $8 | 75 |
| 4 | Claude Fable 5.1 | 124.1 | $20 | 59 |
| 5 | Claude Sonnet 5.5this model | 121.8 | $4 | 103 |
| 6 | Gemini 4 Argon | 121.4 | $4 | 46 |
| 8 | Muse Wonder Full | 118.1 | n/a | n/a |
| 9 | GPT-6.1 Sol | 118.0 | $4 | 44 |
| 10 | Claude Opus 5 | 117.4 | $10 | 71 |
| 11 | Muse Wonder | 113.3 | $8 | n/a |
Price in dollars per million tokens, mixed from 3 parts input and 1 part output. Speed in tokens per second.
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Profile of Claude Sonnet 5.5Compare several models side by sideHow the overall index works