Popular Comparisons:
⚡3-Second Selection Verdict
Daily & TestsPick GPT-5.6 Luna (Save 98%)
OpenAIStale

GPT-5.6 Luna

★ Save 98%
Input$0.20 / 1M
Output$1.20 / 1M
Context1M
CursorBench Pass Rate35.9%
OpenAIVerified

GPT-6 Astra

★ Massive Context 1.1M
Input$10.00 / 1M
Output$50.00 / 1M
Context1.1M
CursorBench Pass Rate—
OpenAIVerified

GPT-5.6 Sol

Input$5.00 / 1M
Output$30.00 / 1M
Context1M
CursorBench Pass Rate41.7%

Pick your workflow, then your budget

Estimates use our price snapshot, excluding cache, retries, taxes and tools. Check availability for preview and legacy models.

Workload cost · USD (lower costs less)

GPT-5.6 Luna$4.40
GPT-6 Astra$200.00
GPT-5.6 Sol$110.00

Context capacity · tokens (not recall accuracy)

GPT-5.6 Luna1,000,000
GPT-6 Astra1,050,000
GPT-5.6 Sol1,000,000

CursorBench 4.0 · %

GPT-5.6 Luna35.9%
GPT-6 AstraNo verified data
GPT-5.6 Sol41.7%

Tool reliability, long-context recall and same-harness SWE-bench: untested, not zero.

CursorBench · 2026-10-07 ↗
Patch review example: why does an empty array slip through?

Editorial example, not measured model output. Review boundary contracts and regression tests; this is not a model ranking.

export function mean(values: number[]) {
  return values.reduce((a, b) => a + b, 0)
    / values.length;
}

// mean([]) => NaN
// Missing an explicit empty-input contract
⚙️ Select ModelGPT-5.6 Luna vs GPT-6 Astra vs GPT-5.6 Sol
Slot 1OpenAI
Slot 2OpenAI
Slot 3OpenAI
GPT-5.6 Luna VS GPT-6 Astra VS GPT-5.6 Sol
💳 View Plans↗

💰 Monthly Cost Simulation

Simulate monthly cost differences based on your estimated token usage volume

Monthly Input Tokens (Prompt)10 M tokens
Monthly Output Tokens (Completion)2 M tokens
GPT-5.6 Luna
$4.40/ mo
(in: $2.00 + out: $2.40)
GPT-6 Astra
$200.00/ mo
(in: $100.00 + out: $100.00)
GPT-5.6 Sol
$110.00/ mo
(in: $50.00 + out: $60.00)
AttributeGPT-5.6 LunaOpenAIGPT-6 AstraOpenAIGPT-5.6 SolOpenAI
Input$0.20$10.00$5.00
Output$1.20$50.00$30.00
Context1M1.1M1M
CursorBench Pass Rate35.9%—41.7%
StatusStaleVerifiedVerified
Tags & CapabilitiesFast, Low cost, MultimodalFlagship, Reasoning, Coding, Agentic, Multimodal, Thinking, SOTA, gpt-6Flagship, Reasoning, Coding, Multimodal, Thinking
LMArena Code#34#2#17
LMArena Agent#29#2#11
CursorBench#13#—#8
Artificial Analysis#31#5#13
Vals AI#22#7#12
LiveBench#31#4#9
LMArena Text#40#23#13
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