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Prompts that approach the documented context limit
Claude Fable 5.1
Claude Fable 5.1 has the larger documented context window.
Confidence: documented
Claude Fable 5.1 vs dots3-note Preview
Updated October 17, 2026. Rank says Claude Fable 5.1 is ahead. Price, access, and your workload can each overturn that. Public scores include evidence status and uncertainty.
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Decision reading
Claude Fable 5.1 has the higher public point estimate, 83.18 versus 63.78. Their conditional score ranges do not overlap. These ranges do not establish rank confidence. 5 results are shared. Category rows resting on Estimated evidence or different benchmark sets are marked directional and do not name a winner.
- Shared results
- 5
- Claude Fable 5.1 only
- 28
- dots3-note Preview only
- 26
- Like-for-like categories
- 0 / 8
Supported: Claude Fable 5.1 · Estimated: dots3-note Preview. Conditional ranges do not establish rank confidence.How the comparison works
Which one for your work
Recommendations appear only when a shared evidence basis or an explicit operating constraint supports the call. Secondary and unsupported use cases stay disclosed below the initial list.
Show secondary and unsupported calls
Coding work
Code generation, repair, and software-engineering tasks
Not enough matched evidence
Dots3-note Preview is not ranked on the public lane for coding, so no winner is named for coding.
Confidence: limitedAgentic work
Tool use, computer use, and multi-step task completion
Not enough matched evidence
Dots3-note Preview is scored on Estimated evidence for agentic, so the reading is directional rather than like-for-like.
Confidence: limitedChat turn cost
1K fresh input + 500 output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
Confidence: listed-ratesCache-heavy agent loop cost
200K cached + 20K fresh input + 10K output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
Confidence: listed-ratesRepository review cost
50K fresh input + 3K output tokens
Not enough matched evidence
A complete comparable API-rate estimate is not available for both models.
Confidence: listed-rates
Which one for a specific job
Choose a job from the LLM Selector's task catalog to see the category row it rests on, under the same basis rules as the table below. A directional row stays directional; choosing a job never creates a winner.
The same task catalog as the LLM Selector. Each job names the evidence surface it rests on; nothing here adds a new score.
76.8Claude Fable 5.1—dots3-note Preview
Not comparable · BenchAlign v5.8
The coding row is not comparable on the public lane: at least one model is not measured or not ranked there.
Coding scores combine specific tasks and setups. Match the editor, harness, and effort to your workflow.
Same basis rules as the category table below
What is actually comparable
Shared results can support a head-to-head reading. Results present for only one model describe coverage, not superiority.
28 Claude Fable 5.1 only
5 Shared
26 dots3-note Preview only
1 category rests on Estimated evidence or different evidence sets. Those rows remain visible for coverage context but do not name a winner.
Shape of the matched evidence
Only shared public evidence is shown. Sparse evidence stays a ruled list rather than being closed into a radar shape.
Too few matched category axes support a radar. The ruled list below shows only shared benchmark results; positions use each benchmark’s normalized display scale when available.
SWE-bench ProCoding
Normalized gap 20.2Claude Fable 5.1:81.2%dots3-note Preview:61%SWE MultilingualCoding
Normalized gap 13.4Claude Fable 5.1:89.1%dots3-note Preview:75.7%HLEKnowledge
Normalized gap 12.4Claude Fable 5.1:65%dots3-note Preview:52.6%ARC-AGI-2Reasoning
Normalized gap 8.6Claude Fable 5.1:90%dots3-note Preview:81.4%
Bars run 0–100 on each benchmark’s normalized display scale
Category results, on a stated basis
Each row shows the public-lane category score for both models: the BenchAlign v5.8 lane for agentic, coding, and knowledge, and the weighted public rows elsewhere, with the same rank each model page reports. A row is like-for-like only when both scores rest on Supported evidence or the same weighted set. Directional and not-comparable rows remain visible, but they never receive a winner.
Agentic
Directional only- Claude Fable 5.1
- 80.9
- Supported · #2/128
- dots3-note Preview
- 59.1
- Estimated · #30/128
- Basis
- BenchAlign v5.8 lane · 12 vs 9 public rows
- Reading
- Directional only
Coding
Not comparable- Claude Fable 5.1
- 76.8
- Supported · #3/150
- dots3-note Preview
- Not ranked
- Basis
- BenchAlign v5.8 lane · 11 vs 7 public rows
- Reading
- Not comparable
Reasoning
Not comparable- Claude Fable 5.1
- 85.2
- #4/28
- dots3-note Preview
- 76.6
- Unranked · 1 rankable row
- Basis
- Provisional lane · 1 vs 1 weighted rows
- Reading
- Not comparable
Multimodal
Not comparable- Claude Fable 5.1
- Not ranked
- dots3-note Preview
- 79.6
- Unranked · 10 rankable rows
- Basis
- Provisional lane · 0 vs 1 weighted rows
- Reading
- Not comparable
Knowledge
Not comparable- Claude Fable 5.1
- 86.9
- Supported · #2/184
- dots3-note Preview
- Not ranked
- Basis
- BenchAlign v5.8 lane · 4 vs 1 public rows
- Reading
- Not comparable
Multilingual
Not comparable- Claude Fable 5.1
- Not ranked
- dots3-note Preview
- Not ranked
- Basis
- Provisional lane · 0 vs 0 weighted rows
- Reading
- Not comparable
Instruction following
Not comparable- Claude Fable 5.1
- Not ranked
- dots3-note Preview
- 89.1
- #32/148
- Basis
- Provisional lane · 0 vs 1 weighted rows
- Reading
- Not comparable
Math
Not comparable- Claude Fable 5.1
- 96.8
- Unranked · 2 rankable rows
- dots3-note Preview
- Not ranked
- Basis
- Provisional lane · 2 vs 0 weighted rows
- Reading
- Not comparable
| Category | Claude Fable 5.1 | dots3-note Preview | Basis | Reading |
|---|---|---|---|---|
| Agentic | 80.9Supported · #2/128 | 59.1Estimated · #30/128 | Directional onlyBenchAlign v5.8 lane · 12 vs 9 public rows | Directional only |
| Coding | 76.8Supported · #3/150 | Not ranked | Not comparableBenchAlign v5.8 lane · 11 vs 7 public rows | Not comparable |
| Reasoning | 85.2#4/28 | 76.6Unranked · 1 rankable row | Not comparableProvisional lane · 1 vs 1 weighted rows | Not comparable |
| Multimodal | Not ranked | 79.6Unranked · 10 rankable rows | Not comparableProvisional lane · 0 vs 1 weighted rows | Not comparable |
| Knowledge | 86.9Supported · #2/184 | Not ranked | Not comparableBenchAlign v5.8 lane · 4 vs 1 public rows | Not comparable |
| Multilingual | Not ranked | Not ranked | Not comparableProvisional lane · 0 vs 0 weighted rows | Not comparable |
| Instruction following | Not ranked | 89.1#32/148 | Not comparableProvisional lane · 0 vs 1 weighted rows | Not comparable |
| Math | 96.8Unranked · 2 rankable rows | Not ranked | Not comparableProvisional lane · 2 vs 0 weighted rows | Not comparable |
Ranks count the models scored in each category’s lane, so the agentic, coding, and knowledge denominators (BenchAlign v5.8) differ from the provisional-lane categories. Unranked scores sit on the provisional lane’s scale but never name a winner. Like-for-like rows within 0.5 points read as a practical tie.
Supported evidence per lane · bars run 0–100Methodology
What each workload costs
Three fixed token mixes turn per-token rates into comparable decisions. Each scenario states context fit and whether cached input had to fall back to the published list-input rate.
Chat turn
1K fresh input + 500 output tokens
- Claude Fable 5.1
- $0.035
- Fits in one request
- dots3-note Preview
- Self-hosted; infrastructure cost varies
- Fits in one request
dots3-note Preview has no comparable published API token rate.
Repository review
50K fresh input + 3K output tokens
- Claude Fable 5.1
- $0.65
- Fits in one request
- dots3-note Preview
- Self-hosted; infrastructure cost varies
- Fits in one request
dots3-note Preview has no comparable published API token rate.
Cache-heavy agent loop
200K cached + 20K fresh input + 10K output tokens
- Claude Fable 5.1
- $0.75
- Fits in one request
- dots3-note Preview
- Self-hosted; infrastructure cost varies
- Fits in one request
- Cached-input rate unavailable
dots3-note Preview has no comparable published API token rate.
Cached input falls back to the list input rate only where a cached rate is unpublished
Specification differences
Sourced differences are shown directly. Missing facts stay explicit instead of being inferred from a model name or family.
SpecificationClaude Fable 5.1dots3-note Preview
Context window
Maximum documented context; output-token limits may be lower.
Claude Fable 5.1
dots3-note Preview
API model ID
Claude Fable 5.1
claude-fable-5-1
Anthropic Fable 5.1 and Mythos 5.1 launchdots3-note Preview
Not sourced
Cached-input rate
A missing cached-input rate falls back to the listed input rate only in the stated workload estimate.
Claude Fable 5.1
$0.25 per 1M cached input tokens
Anthropic Fable 5.1 launchdots3-note Preview
No comparable hosted API rate
dots3-note Preview model cardDocumented inputs
Claude Fable 5.1
Not sourced
dots3-note Preview
Not sourced
Documented outputs
Claude Fable 5.1
Not sourced
dots3-note Preview
Not sourced
Provider availability
Claude Fable 5.1
Generally Available · Claude API, Claude products, AWS, Google Cloud, Microsoft Azure
Anthropic Fable 5.1 and Mythos 5.1 launchdots3-note Preview
Not sourced
Reasoning profile
Claude Fable 5.1
Reasoning
dots3-note Preview
Reasoning
Weight access
Claude Fable 5.1
Proprietary
dots3-note Preview
Open Weight
License
Claude Fable 5.1
Proprietary
dots3-note Preview
Open Weight
Release date
Claude Fable 5.1
2026-09-01
dots3-note Preview
2026-08-14
If you already use one of these models
- Deployment change
- The models list different providers, so authentication, endpoint behavior, limits, and feature support may change.
- Quality signal
- Claude Fable 5.1 has the higher public point estimate, 83.18 versus 63.78. Their conditional score ranges do not overlap. These ranges do not establish rank confidence.
- Workload cost
- A complete comparable API-rate estimate is not available for both models.
- Context tradeoff
- Claude Fable 5.1 has the larger documented window (1M).
Run the same representative tasks against both endpoints before changing production traffic.
Questions
Which is better, Claude Fable 5.1 or dots3-note Preview?
Claude Fable 5.1 has the higher public point estimate, 83.18 versus 63.78. Their conditional score ranges do not overlap. These ranges do not establish rank confidence. The page therefore keeps the decision tied to the specific documented workload.
Which is better for coding, Claude Fable 5.1 or dots3-note Preview?
Dots3-note Preview is not ranked on the public lane for coding, so no winner is named for coding.
Which is better for agentic tasks, Claude Fable 5.1 or dots3-note Preview?
Claude Fable 5.1 scores higher for agentic tasks on the public lane, 80.9 to 59.1. Dots3-note Preview is scored on Estimated evidence for agentic tasks, so the reading is directional rather than like-for-like. BenchLM does not name a winner for agentic tasks from a directional reading; read the shared benchmark rows directly and test the models on the same task set.
Which costs less, Claude Fable 5.1 or dots3-note Preview?
Both models do not have comparable published API token rates, so this page does not name a universal price winner.
Which has the larger context window, Claude Fable 5.1 or dots3-note Preview?
Claude Fable 5.1 has the larger documented context window: 1M, compared with 512K.
Self-host vs API cost
Estimates at 50,000 req/day · 1000 tokens/req average.
Claude Fable 5.1
API / mo$45,000
Self-host / moNot listed
Break-even—
Proprietary model — self-hosting not applicable.
dots3-note Preview
API / mo$0
Self-host / mo$13,981
Break-even—
Benchmark evidence
The full public result ledger is available for audit without forcing a wide desktop table onto a phone.
Browse raw public benchmark evidence59 rows
Agentic
Terminal-Bench 4.0
Claude Fable 5.155.80%Sourcedots3-note Preview—Not directly comparable
Terminal-Bench-Science 0.1
Claude Fable 5.152.6%Sourcedots3-note Preview—Not directly comparable
OSWorld 2.0
Claude Fable 5.141.7%Sourcedots3-note Preview—Not directly comparable
AutomationBench
Claude Fable 5.131.4%Sourcedots3-note Preview—Not directly comparable
Toolathlon-Verified
Claude Fable 5.177.8%Sourcedots3-note Preview55.6%SourceClaude Fable 5.1 leads this result
Toolathlon Verified Pass@3
Claude Fable 5.181.5%Sourcedots3-note Preview—Not directly comparable
Toolathlon Verified Pass³
Claude Fable 5.173.1%Sourcedots3-note Preview—Not directly comparable
Toolathlon Verified avg. turns
Claude Fable 5.123.7 turnsSourcedots3-note Preview—Not directly comparable
Terminal-Bench 2.1 (Vals)
Claude Fable 5.185.0%Sourcedots3-note Preview—Not directly comparable
ApprenticeBench
Claude Fable 5.172%Sourcedots3-note Preview—Not directly comparable
CWE-bench v1
Claude Fable 5.158.0%Sourcedots3-note Preview—Not directly comparable
MazeBench
Claude Fable 5.110%Sourcedots3-note Preview—Not directly comparable
Claw-Eval
Claude Fable 5.1—dots3-note Preview73.4%SourceNot directly comparable
Terminal-Bench 2.1
Claude Fable 5.1—dots3-note Preview75.1%SourceNot directly comparable
skillsBench
Claude Fable 5.1—dots3-note Preview52.8%SourceNot directly comparable
APEX-Agents
Claude Fable 5.1—dots3-note Preview30.8%SourceNot directly comparable
BrowseComp
Claude Fable 5.1—dots3-note Preview83.3%SourceNot directly comparable
HLE w/ tools
Claude Fable 5.1—dots3-note Preview52.6%SourceNot directly comparable
DeepSearchQA
Claude Fable 5.1—dots3-note Preview92.1%SourceNot directly comparable
WideResearch
Claude Fable 5.1—dots3-note Preview78.9%SourceNot directly comparable
Coding
Bug Hunt Bench
Claude Fable 5.143.0 fixesSourcedots3-note Preview—Not directly comparable
SWE-bench Pro
Claude Fable 5.181.2%Sourcedots3-note Preview61%SourceClaude Fable 5.1 leads this result
SWE Multilingual
Claude Fable 5.189.1%Sourcedots3-note Preview75.7%SourceClaude Fable 5.1 leads this result
SWE Multimodal
Claude Fable 5.154.7%Sourcedots3-note Preview—Not directly comparable
DeepSWE
Claude Fable 5.167.4%Sourcedots3-note Preview—Not directly comparable
FrontierSWE v2
Claude Fable 5.156.3%Sourcedots3-note Preview—Not directly comparable
ProgramBench
Claude Fable 5.187.6%Sourcedots3-note Preview—Not directly comparable
CursorBench 3.2
Claude Fable 5.173.4%Sourcedots3-note Preview—Not directly comparable
LiveCodeBench (Vals)
Claude Fable 5.190.5%Sourcedots3-note Preview—Not directly comparable
CursorBench 4.0
Claude Fable 5.151.8%Sourcedots3-note Preview—Not directly comparable
PostTrainBench v1.1
Claude Fable 5.140.2%Sourcedots3-note Preview—Not directly comparable
Codeforces
Claude Fable 5.1—dots3-note Preview3056.0SourceNot directly comparable
LiveCodeBench v6
Claude Fable 5.1—dots3-note Preview91.5%SourceNot directly comparable
Terminal-Bench 2.1
Claude Fable 5.1—dots3-note Preview75.1%SourceNot directly comparable
SWE-bench Verified
Claude Fable 5.1—dots3-note Preview78.4%SourceNot directly comparable
NL2Repo
Claude Fable 5.1—dots3-note Preview49.8%SourceNot directly comparable
Reasoning
Multimodal
SimpleVQA
Claude Fable 5.1—dots3-note Preview72.5%SourceNot directly comparable
MMMU-Pro
Claude Fable 5.1—dots3-note Preview79.1%SourceNot directly comparable
MathVision
Claude Fable 5.1—dots3-note Preview87.7%SourceNot directly comparable
ZeroBench
Claude Fable 5.1—dots3-note Preview19.0%SourceNot directly comparable
CharXiv w/o tools
Claude Fable 5.1—dots3-note Preview83.1%SourceNot directly comparable
GDP.pdf (no tools)
Claude Fable 5.1—dots3-note Preview60.7%SourceNot directly comparable
PerceptionBench
Claude Fable 5.1—dots3-note Preview53.4%SourceNot directly comparable
BabyVision
Claude Fable 5.1—dots3-note Preview50.0%SourceNot directly comparable
MMVU
Claude Fable 5.1—dots3-note Preview79.9%SourceNot directly comparable
VideoMMMU
Claude Fable 5.1—dots3-note Preview86.8%SourceNot directly comparable
Knowledge
HLE
Claude Fable 5.165%Sourcedots3-note Preview52.6%SourceClaude Fable 5.1 leads this result
HLE w/o tools
Claude Fable 5.160.9%Sourcedots3-note Preview—Not directly comparable
GPQA Diamond (Vals)
Claude Fable 5.193.4%Sourcedots3-note Preview—Not directly comparable
MMLU-Pro (Vals)
Claude Fable 5.192.4%Sourcedots3-note Preview—Not directly comparable
Instruction following
Math
59 public results · 5 shared
Watch Claude Fable 5.1 vs dots3-note Preview
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Last updated October 17, 2026