Compare / head-to-head
Claude Fable 5.1vsGemini 3 Flash Preview
Claude Fable 5.1 leads 5 of 5 shared benchmarks. Gemini 3 Flash Preview has the larger context window (1.0M tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
5 – 0
Claude Fable 5.1 leads
Cheaper per token
—
list price, input + output
Larger context
Gemini 3 Flash Preview
1.0M tokens
Provider uptime (30d)
100% · 100%
Anthropic · Google
Claude Fable 5.1
Anthropic · released 2026-09-01
textvision
Gemini 3 Flash Preview
Google · released 2025-12-17
textvisionaudio
- Context
- 1.0M
- Max out
- 66K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 13 · 9 core
Quality
Benchmark matrix
5 shared · 3 only Claude Fable 5.1 · 6 only Gemini 3 Flash Preview| Benchmark | Claude Fable 5.1 | Gemini 3 Flash Preview | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 5 | ||||
| Humanity's Last Exam (no tools) | 60.9% ↗ | 33.7% ↗ | +27.2 pt | Claude Fable 5.1 |
| FrontierMath Tier 4 v2 (Epoch AI run) | 87.8% ↗epoch | 17.1% ↗epoch | +70.7 pt | Claude Fable 5.1 |
| FrontierMath Tiers 1-3 v2 (Epoch AI run) | 90.2% ↗epoch | 51.2% ↗epoch | +39 pt | Claude Fable 5.1 |
| OTIS Mock AIME 2024-2025 (Epoch AI run) | 100% ↗epoch | 95.6% ↗epoch | +4.4 pt | Claude Fable 5.1 |
| SimpleQA Verified | 70.8% ↗epoch | 68.7% ↗ | +2.1 pt | Claude Fable 5.1 |
| Only Claude Fable 5.1 reports · 3 | ||||
| CursorBench 3.2.0 | 73.4% ↗ | not reported | — | — |
| GDPval-AA v2 | 1853 ↗ | not reported | — | — |
| Terminal-Bench Science 0.1 | 52.6% ↗ | not reported | — | — |
| Only Gemini 3 Flash Preview reports · 6 | ||||
| SWE-bench Verified | not reported | 78% ↗ | — | — |
| GPQA Diamond | not reported | 90.4% ↗ | — | — |
| AIME 2025 | not reported | 95.2% ↗ | — | — |
| MMMU-Pro | not reported | 81.2% ↗ | — | — |
| SWE-bench Verified (Epoch AI run) | not reported | 75.4% ↗epoch | — | — |
| Terminal-Bench 2.0 | not reported | 47.6% ↗ | — | — |
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 Gemini 3 Flash Preview 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 | Gemini 3 Flash Preview | Edge |
|---|---|---|---|
| Context window | 1M tokens | 1.0M tokens | Gemini 3 Flash Preview |
| Max output | 128K tokens | 66K 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 · vision · audio | Gemini 3 Flash Preview |
| Released | 2026-09-01 | 2025-12-17 | — |
| Cited benchmark scores | 8 | 13 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
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