Model comparison
Agents-A1 vs Claude Fable 5
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: Agents-A1 unranked (Not scored); Claude Fable 5 #2 (Supported). Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Agents-A1 and Claude Fable 5 share 0 comparable benchmark results. 1 of 8 categories are comparable. 6 results are unique to Agents-A1; 34 to Claude Fable 5.
Updated July 23, 2026- Shared results
- 0
- Agents-A1 only
- 6
- Claude Fable 5 only
- 34
- Comparable categories
- 1 / 8
Treat this as a split decision. Agents-A1 makes more sense if its workflow fits your team better; Claude Fable 5 is the better fit if agentic is the priority or you need the larger 1M+ context window.
Confidence note. This is a partial-evidence comparison with 0 shared benchmark results across 0 evidence categories; 1 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Agents-A1 and Claude Fable 5 finish on the same BenchAlign overall score, so this is less about a single winner and more about where the edge shows up. The BenchAlign headline says tie; the benchmark table is where the real choice happens.
Claude Fable 5 gives you the larger context window at 1M+, compared with 262K for Agents-A1.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Agents-A1 | Claude Fable 5 | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Agents-A1Not available | Claude Fable 5$10 input / $50 output | A complete price comparison is not available. |
| Generation speedtokens per second | Agents-A1Not available | Claude Fable 5Not available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Agents-A1Not available | Claude Fable 5Not available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Agents-A1262K | Claude Fable 51M+ | Claude Fable 5 lists the larger context window. |
Benchmark Deep Dive
AgenticClaude Fable 5 wins16 benchmarks
| Benchmark | Agents-A1 | Claude Fable 5 | Result |
|---|---|---|---|
| BrowseCompSource | 75.5% | — | Not comparable |
| HLE w/ toolsSource | 47.6% | — | Not comparable |
| VITA-BenchSource | 38.8% | — | Not comparable |
| 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 |
Coding9 benchmarks
| Benchmark | Agents-A1 | Claude Fable 5 | 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 |
Reasoning3 benchmarks
Knowledge7 benchmarks
| Benchmark | Agents-A1 | Claude Fable 5 | Result |
|---|---|---|---|
| HLESource | 47.6% | — | Not comparable |
| 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 |
Multimodal3 benchmarks
Frequently Asked Questions (2)
Which is better, Agents-A1 or Claude Fable 5?
Agents-A1 and Claude Fable 5 are tied on the BenchAlign overall score, so the right pick depends on which category matters most for your use case.
Which is better for agentic tasks, Agents-A1 or Claude Fable 5?
Claude Fable 5 has the edge for agentic tasks in this comparison, averaging 84.6 versus 75.5. Agents-A1 stays close enough that the answer can still flip depending on your workload.
Related Comparisons
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.