Claude Fable 5 vs Gemini 4 Argon
Different efforts: max · high · Compare all at high
Chartography Chartography: Expert chart reasoning over professional scientific, medical, financial and engineering charts
Fable 534.8
Gemini 4 Argon71.6
GDP.pdf · AA all-pass GDP.pdf · AA all-pass: Models reason over professional PDF documents; an attempt passes only when every atomic criterion passes
Fable 524
Gemini 4 Argon21.8
Arena Document · overall Arena Document · overall: Human pairwise preferences in the stated document vote pool
Fable 51,496.1
Gemini 4 Argon—
Arena Vision · overall Arena Vision · overall: Human pairwise preferences in the stated vision vote pool
Fable 5 · high1,324.9
Gemini 4 Argon—
| Benchmark | Fable 5 | Gemini 4 Argon |
|---|---|---|
| Chartography | 34.8 | 71.6 |
| GDP.pdf · AA all-pass | 24 | 21.8 |
| Arena Document · overall | 1,496.1 | — |
| Arena Vision · overall | 1,324.9 · high | — |
Specs
| Spec | Fable 5 | Gemini 4 Argon |
|---|---|---|
| Input, per 1M | $10 | !$2 |
| Output, per 1M | $50 | !$10 |
| Cost per task? | $8.75 | $1.99 |
| Speed, tok/s | 67 | 84 |
| Context | 1M | 1M |
| Weights | Closed | Closed |
| Released | Jun 2026 | Oct 2026 |
| See images | ✓ | ✓ |
| Read PDFs | Partial | ✓ |
| Hear audio | — | ✓ |
| Watch video | — | ✓ |
| Call tools | ✓ | ✓ |
| Force a tool call | Partial | Partial |
| Return strict JSON | ✓ | ✓ |
| Search the web | ? | ✓ |
| Run code | ? | ✓ |
| Use a computer | ? | ? |
What breaks when you switch
Fable 5 → Gemini 4 Argon
Synchronous output stops at 65,536›
With background false, output limits above 65,536 tokens return HTTP 400; stay at or below that limit.
Sampling parameters are ignored›
temperature, top_p and top_k are ignored; remove them from requests.
No explicit caching›
Explicit caching is unavailable; omit explicit cache requests.
Gemini 4 Argon → Fable 5
Nothing known.