Claude Fable 5
Anthropic's new Mythos-class flagship and the most capable coding model anyone can use — 80.3% SWE-Bench Pro, an 11-point jump over Opus 4.8. 1M context, 128K output, native parallel subagents. Released June 9, 2026.
The best coding model is the one that catches more complexity than it creates. These picks are tuned for real engineering work, not benchmark theater.
Last verified:
/Rankings refresh daily when model data changesBest premium model for coding agents and high-stakes engineering work.
The top model handles debugging, architecture, and code edits without losing the plot.
Strong alternatives still exist if you need better value or faster responses.
The ranking prioritizes practical usefulness over hype cycles.
Choose the top pick when accuracy and reliability matter more than raw cost.
Choose a cheaper alternative when prompt volume is high and failure cost is lower.
Choose a faster model when you need rapid iteration more than maximum reasoning depth.
Use the controls to see how the recommendation changes when your workflow shifts toward quality, cost, speed, or long-context work.
Anthropic / Premium / Aug 1, 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.
64.3% on SWE-Bench Pro, ahead of GPT-5.5 and GPT-5.4 in current public comparisons
1M context window for large codebases and document-heavy workflows
Strong vision and agentic consistency improvements over Opus 4.6
Premium pricing is expensive for high-volume workloads
GPT-5.5 has stronger OpenAI ecosystem fit and faster Codex availability for some teams
Strong backups depending on your budget, workload, and preferred tradeoffs.
Anthropic's new Mythos-class flagship and the most capable coding model anyone can use — 80.3% SWE-Bench Pro, an 11-point jump over Opus 4.8. 1M context, 128K output, native parallel subagents. Released June 9, 2026.
Anthropic's most powerful frontier model — the same underlying model as Fable 5 with safeguards lifted in some areas, restricted to vetted enterprise and research partners. The capability ceiling of mid-2026.
Anthropic's newest Opus flagship — 69.2% SWE-Bench Pro, 88.6% SWE-Bench Verified, 1890 Arena Elo (121 pts ahead of GPT-5.5), and native parallel subagents. Same $5/$25 price as Opus 4.7.
Anthropic's previous Opus flagship for high-stakes coding, reasoning, and deep research before Opus 4.7.
UseRightAI recommendations are based on practical decision factors people actually feel in day-to-day use.
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Claude Opus 4.7 is the current top recommendation because it delivers the strongest mix of fit, output quality, and practical usefulness for this category.
Mistral: Mistral Nemo is the strongest lower-cost alternative when you want better value without dropping all the way down in usefulness.
Choose the top pick when you want the safest default. Choose an alternative when your priority shifts toward cost, speed, context window, or a more specialized workflow fit.
Mistral: Mistral Nemo is the cheapest strong alternative here if you want better value without dropping to a weak default.