Compare / head-to-head
Claude Fable 5.1vsDeepSeek R1
Claude Fable 5.1 leads 1 of 1 shared benchmark. Claude Fable 5.1 has the larger context window (1M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 0
Claude Fable 5.1 leads
Cheaper per token
—
list price, input + output
Larger context
Claude Fable 5.1
1M tokens
Provider uptime (30d)
100% · 100%
Anthropic · DeepSeek
Claude Fable 5.1
Anthropic · released 2026-09-01
textvision
DeepSeek R1
DeepSeek · released 2025-01-20
text
- Context
- 128K
- Max out
- 33K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 8 · 7 core
Quality
Benchmark matrix
1 shared · 7 only Claude Fable 5.1 · 6 only DeepSeek R1| Benchmark | Claude Fable 5.1 | DeepSeek R1 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 1 | ||||
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 100% ↗epoch | 53.3% ↗epoch | +46.7 pt | Claude Fable 5.1 |
| Only Claude Fable 5.1 reports · 7 | ||||
| Humanity's Last Exam (no tools) | 60.9% ↗ | not reported | — | — |
| CursorBench 3.2.0 | 73.4% ↗ | not reported | — | — |
| FrontierMath Tier 4 v2 (Epoch AI run) | 87.8% ↗epoch | not reported | — | — |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 90.2% ↗epoch | not reported | — | — |
| GDPval-AA v2 | 1853 ↗ | not reported | — | — |
| SimpleQA Verified | 70.8% ↗epoch | not reported | — | — |
| Terminal-Bench Science 0.1 | 52.6% ↗ | not reported | — | — |
| Only DeepSeek R1 reports · 6 | ||||
| SWE-bench Verified | not reported | 49.2% ↗ | — | — |
| GPQA Diamond | not reported | 71.5% ↗ | — | — |
| MMLU | not reported | 90.8% ↗ | — | — |
| MMLU-Pro | not reported | 84% ↗ | — | — |
| AIME 2025 | not reported | 70% ↗matharena | — | — |
| LMArena Elo | not reported | 1372.6 ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Claude Fable 5.1 minus DeepSeek R1 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Claude Fable 5.1 | DeepSeek R1 | Edge |
|---|---|---|---|
| Context window | 1M tokens | 128K tokens | Claude Fable 5.1 |
| Max output | 128K tokens | 33K tokens | Claude Fable 5.1 |
| Input price / 1M | $10 ↗ | — | — |
| Output price / 1M | $50 ↗ | — | — |
| Cached input / 1M | $0.25 ↗ | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $60 | — | — |
| Modalities | text · vision | text | Claude Fable 5.1 |
| Released | 2026-09-01 | 2025-01-20 | — |
| Cited benchmark scores | 8 | 8 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Claude Fable 5.1 vs …
Models sharing the most benchmarksMore matchups
DeepSeek R1 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Claude Fable 5.1 and DeepSeek R1 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.