Claude Opus 4.8 wins on coding (100 vs 84) and writing quality and context window (1M vs 128K). DeepSeek R1 wins on price ($0.55 vs $5/1M input). For most workflows, Claude Opus 4.8 is the stronger default — best value premium coder — frontier-grade at half of fable 5's price.
The shortest way to see the safest default, the lower-cost option, and the specialist pick before you read deeper.
Claude Opus 4.8 is the safest overall answer here when you want the strongest default instead of the lowest list price.
Meta: Llama 3.1 8B Instruct is the lower-cost option to start with when you still need useful output at scale.
DeepSeek R1 is the better pick when response speed matters more than maximum reasoning depth.
Claude Opus 4.8 leads on coding with a score of 100 vs 84 for DeepSeek R1.
Claude Opus 4.8 has the larger context window: 1M vs 128K for DeepSeek R1.
DeepSeek R1 is cheaper at $0.55/1M input tokens vs $5/1M for Claude Opus 4.8.
Choose Claude Opus 4.8 for coding and research — hardest coding tasks.
Choose DeepSeek R1 when math.
DeepSeek R1 is the more cost-efficient option at $0.55/1M — worth considering if token volume is a concern.
Switch the scoring lens to see whether the top answer changes when you care more about cost, speed, or long-document work.
Anthropic / Premium / May 27, 2026
New #1 on SWE-Bench Pro — parallel subagents, same price as Opus 4.7.
Ranks models by the broadest mix of coding, writing, research, and long-context usefulness.
You need low-latency responses, image generation, or a workflow locked to OpenAI tooling.
The fastest way to see where the recommendation shifts when your priority changes.
New #1 on SWE-Bench Pro — parallel subagents, same price as Opus 4.7.
Open-source o1-class reasoning at a fraction of the cost.
69.2% SWE-Bench Pro — new #1, up from Opus 4.7's 64.3%
88.6% SWE-Bench Verified and 83.4% OSWorld computer use
Native parallel subagents: orchestrated multi-agent execution in a single call
1890 Arena Elo, 121 points ahead of GPT-5.5
Deliberate pace — not the right pick for latency-sensitive applications
Same price tier as Opus 4.7; not a budget option
UseRightAI recommendations are based on practical decision factors people actually feel in day-to-day use.
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Claude Opus 4.8 wins on more categories — coding, research, long context. DeepSeek R1 is the better pick when math. The right choice depends on your specific use case.
DeepSeek R1 is cheaper at $0.55/1M input and $2.19/1M output. Claude Opus 4.8 costs $5/1M input and $25/1M output.
Claude Opus 4.8 has the larger context window at 1M tokens vs DeepSeek R1's 128K. For large document analysis, Claude Opus 4.8 is the stronger pick.
Claude Opus 4.8 is better for coding with a score of 100 vs DeepSeek R1's 84 (out of 100). Claude Fable 5 is the overall coding leader in this directory at 100/100.
Claude Opus 4.8 is faster with a deliberate speed rating (score: 2) vs DeepSeek R1's deliberate rating (score: 1).