Claude Opus 4.7 vs GPT-4o Mini: Detailed Comparison

Choosing between Claude Opus 4.7 (Anthropic) and GPT-4o Mini (OpenAI) comes down to three things: per-token pricing, context window, and which capability matters most for your workload. Claude Opus 4.7 costs $15.00/M input vs $0.15/M for GPT-4o Mini; context windows are 200K vs 128K tokens. Detailed breakdown below.

Side-by-side specs

SpecClaude Opus 4.7GPT-4o Mini
ProviderAnthropicOpenAI
Released2026-04-222024-07-18
Input price $15.00/M $0.15/M
Output price $75.00/M $0.60/M
Cached input $1.5000/M $0.0750/M
Context window 200K 128K
Max output 64K 16K
Modalities text image text image
Tokenizer claude-3 o200k_base

Capability matrix

CapabilityClaude Opus 4.7GPT-4o Mini
function calling Yes Yes
json mode Yes Yes
vision Yes Yes
streaming Yes Yes
tool use Yes No

Benchmark comparison

Higher is better for all benchmarks shown.

BenchmarkCategoryClaude Opus 4.7GPT-4o MiniΔ
GPQA Diamond reasoning 83.1
SWE-bench Verified coding 77.2
Aider Polyglot coding 81.5

Per-call cost on typical workloads

Workload (in/out tokens)Claude Opus 4.7GPT-4o MiniCheaper by
Standard chat (1K / 500) $0.052500 $0.000450 GPT-4o Mini by $0.052050
RAG (4K / 500) $0.097500 $0.000900 GPT-4o Mini by $0.096600
Long doc (20K / 1K) $0.375000 $0.003600 GPT-4o Mini by $0.371400
Very long context (100K / 2K) $1.612500 $0.015900 GPT-4o Mini by $1.596600

When to choose Claude Opus 4.7 over GPT-4o Mini

  • Larger context window (200K vs 128K) — relevant when whole documents or long histories must fit in a single call.
  • Supports tool use — GPT-4o Mini does not.

When to choose GPT-4o Mini over Claude Opus 4.7

  • Per-token input cost is 99% lower than Claude Opus 4.7.

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