A
Anthropic
Claude Fable 5
- Model type
- Proprietary
- Evidence state
- Supported evidence
- Published context
- 1,000,000
Claude Fable 5 vs
GPT-5.6 Terra
Read the published evidence, route context, and missing facts before making a local decision. This page does not name a universal winner.
Models in this comparison
Provider identity and evidence state stay balanced across the pair.
O
OpenAI
GPT-5.6 Terra
- Model type
- Proprietary
- Evidence state
- Estimated evidence
- Published context
- 1,050,000
Key implications
Insufficient shared-metric coverage. Each finding is tied to a published metric, price, context, or modality fact.
- Input API price: GPT-5.6 Terra has the lower verified rate ($2.5 / 1M tokens vs $10 / 1M tokens).
- Output API price: GPT-5.6 Terra has the lower verified rate ($15 / 1M tokens vs $50 / 1M tokens).
- Context window: GPT-5.6 Terra has the larger published context window (1,050,000 tokens vs 1,000,000 tokens).
Shared metric view
A radar is shown only when at least four compatible supported score metrics are published.
Comparable metric detail
- AgenticClaude Fable 5: 75.54 · GPT-5.6 Terra: 58.86
- CodingClaude Fable 5: 81.41 · GPT-5.6 Terra: 69.29
- KnowledgeClaude Fable 5: 67.4 · GPT-5.6 Terra: 84.2
- MathClaude Fable 5: Unavailable · GPT-5.6 Terra: 97
- MultimodalGroundedClaude Fable 5: 60.8 · GPT-5.6 Terra: 71.4
- ReasoningClaude Fable 5: Unavailable · GPT-5.6 Terra: 78.1
- OverallClaude Fable 5: 83.15 · GPT-5.6 Terra: 72.95
Source metrics
Friendly metric names and published units stay visible. Missing measurements remain unavailable rather than becoming a score.
| Metric | Unit | Claude Fable 5 | GPT-5.6 Terra |
|---|---|---|---|
| Agentic | score | 75.54 | 58.86 |
| Coding | score | 81.41 | 69.29 |
| Knowledge | score | 67.4 | 84.2 |
| Math | score | Unavailable | 97 |
| MultimodalGrounded | score | 60.8 | 71.4 |
| Reasoning | score | Unavailable | 78.1 |
| Overall | score | 83.15 | 72.95 |
Agentic
- Unit
- score
- Claude Fable 5
- 75.54
- GPT-5.6 Terra
- 58.86
Coding
- Unit
- score
- Claude Fable 5
- 81.41
- GPT-5.6 Terra
- 69.29
Knowledge
- Unit
- score
- Claude Fable 5
- 67.4
- GPT-5.6 Terra
- 84.2
Math
- Unit
- score
- Claude Fable 5
- Unavailable
- GPT-5.6 Terra
- 97
MultimodalGrounded
- Unit
- score
- Claude Fable 5
- 60.8
- GPT-5.6 Terra
- 71.4
Reasoning
- Unit
- score
- Claude Fable 5
- Unavailable
- GPT-5.6 Terra
- 78.1
Overall
- Unit
- score
- Claude Fable 5
- 83.15
- GPT-5.6 Terra
- 72.95
Pricing and context
Verification is shown beside each selected route. Missing facts remain Not verified.
| Field | Unit | Claude Fable 5 | GPT-5.6 Terra |
|---|---|---|---|
| Input API price | USD / 1M tokens | $10 | $2.5 |
| Cached input API price | USD / 1M tokens | $1 | $0.25 |
| Output API price | USD / 1M tokens | $50 | $15 |
| Route context | tokens | 1,000,000 | 1,050,000 |
| Input modalities | published list | Not verified | Not verified |
| Output modalities | published list | Not verified | Not verified |
Input API price
- Unit
- USD / 1M tokens
- Claude Fable 5
- $10
- GPT-5.6 Terra
- $2.5
Cached input API price
- Unit
- USD / 1M tokens
- Claude Fable 5
- $1
- GPT-5.6 Terra
- $0.25
Output API price
- Unit
- USD / 1M tokens
- Claude Fable 5
- $50
- GPT-5.6 Terra
- $15
Route context
- Unit
- tokens
- Claude Fable 5
- 1,000,000
- GPT-5.6 Terra
- 1,050,000
Input modalities
- Unit
- published list
- Claude Fable 5
- Not verified
- GPT-5.6 Terra
- Not verified
Output modalities
- Unit
- published list
- Claude Fable 5
- Not verified
- GPT-5.6 Terra
- Not verified
Evidence provenance
Source records, route identity, timestamps, and methodology are consolidated here without declaring either model a winner.
- Publication time
- Sep 14, 2026, 12:37 AM UTC
- Freshness
- Stale — Published benchmark evidence includes benchlm content observed outside the 8-day evidence window.
- Methodology
- benchlm: benchlm_raw_composite
- Model records
- Claude Fable 5 — source benchlm · artifact models · model claude-fable-5
- GPT-5.6 Terra — source benchlm · artifact models · model gpt-5-6-terra
- Selected price routes
- Claude Fable 5 — route benchlm:claude-fable-5 · source benchlm · provider anthropic
- GPT-5.6 Terra — route benchlm:gpt-5-6-terra · source benchlm · provider openai
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