Claude Fable 5 vs GPT-5.4 Mini
A side-by-side comparison of two multimodal models — real specs, pricing, strengths and weaknesses, and a clear verdict on which to choose. Kept current by our agents.
Quick verdict: which should you choose?
Choose Claude Fable 5 if you need
- ✓Coherent handling of 1M-token contexts with detailed file-based reasoning
- ✓Higher intelligence index (59.9) for complex multimodal tasks
- ✓Strong text-visual integration and safety-aligned outputs
- ✓Maximum context lengths where depth matters more than speed
Choose GPT-5.4 Mini if you need
- ✓Fast output at 167.5 t/s and low cost of $4.5 per 1M tokens
- ✓Native support for files, images, and text in flexible workflows
- ✓Document-heavy tasks within a 400k context window
- ✓High-volume processing where latency and budget are priorities
Verdict
Claude Fable 5 leads on intelligence (59.9 vs 40) and maximum context (1M tokens) with stronger multimodal integration and safety alignment, while GPT-5.4 Mini wins on speed (167.5 t/s) and price ($4.5 vs $50 per 1M tokens). Claude suits complex, large-context reasoning; GPT-5.4 Mini fits high-volume, cost-sensitive document workflows. Neither offers audio or video support.
Claude Fable 5 vs GPT-5.4 Mini: side by side
| Spec | Claude Fable 5 | GPT-5.4 Mini | Winner |
|---|---|---|---|
| Intelligence | 59.9 | 40 | Claude Fable 5 |
| Output speed | — | 168 t/s | Tie |
| Output price | $50.00/1M | $4.50/1M | GPT-5.4 Mini |
| Context | 1000K | 400K | Claude Fable 5 |
| Params | — | — | Tie |
| Provider | Anthropic | OpenAI | Tie |
Detailed analysis
Intelligence
Winner: Claude Fable 5Claude Fable 5 reports an intelligence index of 59.9 compared to GPT-5.4 Mini's 40. Its strengths emphasize coherent large-context reasoning and detailed file analysis. GPT-5.4 Mini's mini size may limit depth on complex tasks.
Pricing
Winner: GPT-5.4 MiniGPT-5.4 Mini costs $4.5 per 1M tokens versus Claude Fable 5 at $50 per 1M tokens. This makes GPT-5.4 Mini far more economical for large-scale usage. Both are proprietary models from their respective providers.
Context & Speed
Winner: Claude Fable 5Claude Fable 5 offers a 1M-token context versus GPT-5.4 Mini's 400k, with noted strength in very large inputs. GPT-5.4 Mini provides measured speed of 167.5 t/s while Claude may slow at maximum lengths. Long contexts increase latency for both.
Multimodal Capabilities
Winner: TieBoth handle text, images, and files as multimodal models. Claude Fable 5 highlights strong text-visual integration and file reasoning; GPT-5.4 Mini stresses native support and flexible workflows. Neither lists native audio or video.
Claude Fable 5
Pros
- +Coherent handling of very large contexts
- +Strong integration of text and visual inputs
- +Safety-aligned responses
Cons
- –May decline edge-case or sensitive requests
- –Slower inference on maximum context lengths
- –No native audio or video support
GPT-5.4 Mini
Pros
- +Very large context window
- +Native support for files, images, and text
- +Flexible multimodal workflows
Cons
- –Mini size may reduce depth on complex reasoning
- –Performance depends on input quality across modalities
- –Long contexts can increase latency
Summary: Claude Fable 5 vs GPT-5.4 Mini
Select Claude Fable 5 for highest intelligence, largest context, and safety-focused multimodal reasoning. Choose GPT-5.4 Mini when speed, lower cost, and high-volume file/image processing are primary needs.
Frequently asked questions
Claude Fable 5 scores higher on intelligence (59.9 vs 40) and context size (1M vs 400k), while GPT-5.4 Mini is faster and cheaper.