Olmo 3.1 32B Instruct vs Claude Fable 5.1
Benchmark Performance
Available Benchmarks
Technical Differences
Side-by-Side Facts
| Field | Olmo-3.1-32B-Instruct | Claude Fable 5.1 |
|---|---|---|
| Developer | Ai2 | Anthropic |
| Family | Olmo 3 1 32b Instruct | Claude 5 1 |
| Model | Olmo-3.1-32B-Instruct | Claude Fable 5.1 |
| Version | Olmo-3.1-32B-Instruct | Claude Fable 5.1 |
| Lifecycle | active | active |
| Released | Unknown | 2026-09-01 |
| Knowledge cutoff | Unknown | 2026-06-01 |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |
| Context window | 66K | 1,000K |
| Total parameters | 32.2B | Unknown |
| Active parameters | Unknown | Unknown |
| License | apache-2.0 | Unknown |
| Open weights | Yes | No |
| API available | Unknown | Yes |
| Self-hostable | Yes | No |
| Provider access | Unknown | Anthropic (Standard) |
| Capabilities | chat, generation, tools | chat, generation, reasoning, tools |
11 comparable fields · 9 material differences · Pair passes the primary-source comparison gate
Olmo 3.1 32B Instruct Capabilities
Claude Fable 5.1 Capabilities
Internal Comparison Graph
Related Comparisons
| A | Pair | B | Context |
|---|---|---|---|
| vs | Claude Fable 5Anthropic | cross-developer peerstext | |
| vs |  GPT-6 AstraOpenAI | cross-developer peerstext | |
| vs |  Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext | |
| vs |  DeepSeek-V4-ProDeepSeek | cross-developer peerstext | |
| vs | Grok 4.6xAI | cross-developer peerstext | |
| vs |  Qwen3.8-MaxQwen | cross-developer peerstext | |
| vs |  Kimi-K3Moonshot AI | cross-developer peerstext | |
 MiniMax-M3MiniMax | vs | cross-developer peerstext | |
| vs |  GLM-5.3Z.ai | cross-developer peerstext | |
| vs |  Hy4 previewTencent | cross-developer peerstext | |
| vs | Seed 2.1 ProByteDance Seed | cross-developer peerstext | |
| vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
Olmo 3.1 32B Instruct vs Claude Fable 5.1 FAQs
Is Olmo 3.1 32B Instruct or Claude Fable 5.1 better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Olmo 3.1 32B Instruct and Claude Fable 5.1, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Olmo 3.1 32B Instruct or Claude Fable 5.1?+
Only Claude Fable 5.1 has a directly sourced input price: $10.00 per million tokens. Only Claude Fable 5.1 has a directly sourced output price: $50.00 per million tokens.
Which has a larger context window, Olmo 3.1 32B Instruct or Claude Fable 5.1?+
Claude Fable 5.1 has the larger sourced context window. Olmo 3.1 32B Instruct supports 66K and Claude Fable 5.1 supports 1,000K.
Which performs better in benchmarks, Olmo 3.1 32B Instruct or Claude Fable 5.1?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Olmo 3.1 32B Instruct or Claude Fable 5.1 be self-hosted?+
Olmo 3.1 32B Instruct is the only model in this pair currently marked as self-hostable. Olmo 3.1 32B Instruct is open weight; Claude Fable 5.1 is not marked open weight.
Can Olmo 3.1 32B Instruct and Claude Fable 5.1 understand images?+
Olmo 3.1 32B Instruct is not documented with image input; Claude Fable 5.1 is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Olmo 3.1 32B Instruct or Claude Fable 5.1?+
Claude Fable 5.1 has the larger sourced maximum output: Olmo 3.1 32B Instruct supports 33K and Claude Fable 5.1 supports 128K output tokens.
Do Olmo 3.1 32B Instruct and Claude Fable 5.1 support reasoning and tool use?+
Olmo 3.1 32B Instruct: tool calling. Claude Fable 5.1: reasoning, tool calling, and image input. Feature support does not establish relative quality.
Which is available from more inference providers, Olmo 3.1 32B Instruct or Claude Fable 5.1?+
Olmo 3.1 32B Instruct has 0 sourced provider routes; Claude Fable 5.1 has 1, so Claude Fable 5.1 has broader tracked availability.
Which offers better value, Olmo 3.1 32B Instruct or Claude Fable 5.1?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.