Model comparison
Claude Fable 5 vs DeepSeek V4 Flash Base
Head-to-head evidence from 0 shared benchmark results across 0 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Public leaderboard positions: Claude Fable 5 #2 (Supported); DeepSeek V4 Flash Base unranked (Not scored). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Claude Fable 5 and DeepSeek V4 Flash Base share 0 comparable benchmark results. 0 of 8 categories are comparable. 34 results are unique to Claude Fable 5; 24 to DeepSeek V4 Flash Base.
Updated July 23, 2026- Shared results
- 0
- Claude Fable 5 only
- 34
- DeepSeek V4 Flash Base only
- 24
- Comparable categories
- 0 / 8
Benchmark data for Claude Fable 5 and DeepSeek V4 Flash Base is coming soon on BenchLM.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 0 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
BenchLM has partial data for these models, but not enough overlapping benchmark coverage to produce a fair score-level comparison yet.
Claude Fable 5 has the larger context window at 1M+, compared with 1M for DeepSeek V4 Flash Base.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Claude Fable 5 | DeepSeek V4 Flash Base | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Claude Fable 5$10 input / $50 output | DeepSeek V4 Flash BaseNot available | A complete price comparison is not available. |
| Generation speedtokens per second | Claude Fable 5Not available | DeepSeek V4 Flash BaseNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Claude Fable 5Not available | DeepSeek V4 Flash BaseNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Claude Fable 51M+ | DeepSeek V4 Flash Base1M | Claude Fable 5 lists the larger context window. |
Benchmark Deep Dive
Agentic13 benchmarks
| Benchmark | Claude Fable 5 | DeepSeek V4 Flash Base | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 84.3% | — | Not comparable |
| OSWorld-VerifiedSource | 85% | — | Not comparable |
| GDPval-AASource | 1748 | — | Not comparable |
| AA Agentic IndexSource | 52.8% | — | Not comparable |
| τ²-bench resultsSource | 98.5% | — | Not comparable |
| GDPval-AASource | 62.4% | — | Not comparable |
| AA BriefcaseSource | 1574 | — | Not comparable |
| AA AutomationBenchSource | 48.6% | — | Not comparable |
| AA EnterpriseOps-GymSource | 51.1% | — | Not comparable |
| AA Harvey LABSource | 93.6% | — | Not comparable |
| AA Tau3 BankingSource | 26.8% | — | Not comparable |
| terminalBenchHardSource | 62.9% | — | Not comparable |
| aaTerminalBench21Source | 84.6% | — | Not comparable |
Coding11 benchmarks
| Benchmark | Claude Fable 5 | DeepSeek V4 Flash Base | Result |
|---|---|---|---|
| SWE-bench VerifiedSource | 95% | — | Not comparable |
| SWE-bench ProSource | 80% | — | Not comparable |
| FrontierCode 1.1 MainSource | 53.5% | — | Not comparable |
| Terminal-Bench 2.0Source | 84.3% | — | Not comparable |
| cursorBench31Source | 70.6% | — | Not comparable |
| cursorBench32Source | 70.5% | — | Not comparable |
| VulcanBench v3Source | 87.0% | — | Not comparable |
| AA Coding IndexSource | 76.5% | — | Not comparable |
| AA-SciCodeSource | 60.2% | — | Not comparable |
| BigCodeBenchSource | — | 56.8% | Not comparable |
| HumanEvalSource | — | 69.5% | Not comparable |
Reasoning8 benchmarks
| Benchmark | Claude Fable 5 | DeepSeek V4 Flash Base | Result |
|---|---|---|---|
| AA-LCRSource | 70.0% | — | Not comparable |
| CritPtSource | 28.6% | — | Not comparable |
| BBHSource | — | 86.9% | Not comparable |
| DROPSource | — | 88.6% | Not comparable |
| HellaSwagSource | — | 85.7% | Not comparable |
| WinoGrandeSource | — | 79.5% | Not comparable |
| CLUEWSCSource | — | 82.2% | Not comparable |
| LongBench v2Source | — | 44.7% | Not comparable |
Knowledge18 benchmarks
| Benchmark | Claude Fable 5 | DeepSeek V4 Flash Base | Result |
|---|---|---|---|
| Artificial Analysis Intelligence IndexSource | 59.9% | — | Not comparable |
| AA-GPQA DiamondSource | 92.6% | — | Not comparable |
| AA-HLESource | 53.3% | — | Not comparable |
| AA-Omniscience IndexSource | 40.2% | — | Not comparable |
| AA-Omniscience AccuracySource | 61.4% | — | Not comparable |
| AA-Omniscience Hallucination RateSource | 54.9% | — | Not comparable |
| AGIEvalSource | — | 82.6% | Not comparable |
| MMLUSource | — | 88.7% | Not comparable |
| MMLU-ReduxSource | — | 89.4% | Not comparable |
| MMLU-ProSource | — | 68.3% | Not comparable |
| MMMLUSource | — | 88.8% | Not comparable |
| C-EvalSource | — | 92.1% | Not comparable |
| CMMLUSource | — | 90.4% | Not comparable |
| MultiLoKoSource | — | 42.2% | Not comparable |
| SimpleQASource | — | 30.1% | Not comparable |
| SuperGPQASource | — | 46.5% | Not comparable |
| FACTS ParametricSource | — | 33.9% | Not comparable |
| TriviaQASource | — | 82.8% | Not comparable |
Math3 benchmarks
Multilingual1 benchmarks
| Benchmark | Claude Fable 5 | DeepSeek V4 Flash Base | Result |
|---|---|---|---|
| MGSMSource | — | 85.7% | Not comparable |
Multimodal3 benchmarks
Inst. Following1 benchmarks
| Benchmark | Claude Fable 5 | DeepSeek V4 Flash Base | Result |
|---|---|---|---|
| AA-IFBenchSource | 63.5% | — | Not comparable |
Frequently Asked Questions (3)
Can I compare Claude Fable 5 and DeepSeek V4 Flash Base on BenchLM yet?
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
Why does this comparison show “coming soon”?
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
What data is available for Claude Fable 5 and DeepSeek V4 Flash Base today?
Claude Fable 5: $10.00 input / $50.00 output per 1M tokens DeepSeek V4 Flash Base: Pricing unavailable Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
Related Comparisons
- DeepSeek V4 Flash Base vs DeepSeek V4 Pro (Max)
- DeepSeek V4 Flash Base vs DeepSeek V4 Pro (High)
- DeepSeek V4 Flash Base vs DeepSeek V4 Flash (Max)
- DeepSeek V4 Flash Base vs DeepSeek V4 Flash (High)
- DeepSeek V4 Flash Base vs DeepSeek V4 Pro
- DeepSeek V4 Flash Base vs DeepSeek V4 Pro Base
- DeepSeek V4 Flash Base vs DeepSeek V4 Flash
- Claude Fable 5 vs Claude Mythos 5
Choose a model with this week’s evidence
Join 2,000+ readers for ranking moves, pricing changes, and the claims that still need proof.
One email each week. Unsubscribe anytime.