GPT-5.6 Sol wins on price ($5 vs $10/1M input). Claude Fable 5 wins on coding (100 vs 97). For most workflows, GPT-5.6 Sol is the stronger default — best openai flagship — leads terminal coding and agentic browsing.
The shortest way to see the safest default, the lower-cost option, and the specialist pick before you read deeper.
GPT-5.6 Sol is the safest overall answer here when you want the strongest default instead of the lowest list price.
Mistral: Mistral Nemo is the lower-cost option to start with when you still need useful output at scale.
Claude Fable 5 is the better pick when response speed matters more than maximum reasoning depth.
Claude Fable 5 leads on coding with a score of 100 vs 97 for GPT-5.6 Sol.
GPT-5.6 Sol has the larger context window: 1.05M vs 1M for Claude Fable 5.
GPT-5.6 Sol is cheaper at $5/1M input tokens vs $10/1M for Claude Fable 5.
Choose GPT-5.6 Sol for coding and research — frontier agentic coding.
Choose Claude Fable 5 when the hardest coding tasks.
Both models serve different primary workflows — consider using each where it has a clear edge.
Switch the scoring lens to see whether the top answer changes when you care more about cost, speed, or long-document work.
Anthropic / Premium / Jun 9, 2026
New global #1 — 80.3% SWE-Bench Pro, the most capable model generally available.
Ranks models by the broadest mix of coding, writing, research, and long-context usefulness.
You are latency- or cost-sensitive, or your tasks don't need frontier-level reasoning — Opus 4.8 at half the price is plenty.
The fastest way to see where the recommendation shifts when your priority changes.
Best OpenAI flagship — leads terminal coding and agentic browsing.
New global #1 — 80.3% SWE-Bench Pro, the most capable model generally available.
Terminal-Bench 2.1 leader at 88.8% (91.9% ultra) — the top OpenAI agentic-coding result
94.6% GPQA Diamond and 90.4% BrowseComp — frontier science reasoning and agentic browsing
Artificial Analysis Coding Agent Index leader at 80 points, near Fable 5 intelligence at roughly one-third the cost
Trails Claude Opus 5 badly on repository-level engineering (SWE-bench Pro 64.6% vs 79.2%)
Long-context surcharge ($10/$45 above 272K) and 2–3x ultra-mode costs stack up fast
UseRightAI recommendations are based on practical decision factors people actually feel in day-to-day use.
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GPT-5.6 Sol wins on more categories — coding, research, reasoning. Claude Fable 5 is the better pick when the hardest coding tasks. The right choice depends on your specific use case.
GPT-5.6 Sol is cheaper at $5/1M input and $30/1M output. Claude Fable 5 costs $10/1M input and $50/1M output.
GPT-5.6 Sol has the larger context window at 1.05M tokens vs Claude Fable 5's 1M. For large document analysis, GPT-5.6 Sol is the stronger pick.
Claude Fable 5 is better for coding with a score of 100 vs GPT-5.6 Sol's 97 (out of 100). Claude Fable 5 is the overall coding leader in this directory at 100/100.
Both GPT-5.6 Sol and Claude Fable 5 have similar speed profiles — rated deliberate.