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Compare / head-to-head

Gemini 3.7 FlashvsGPT-5.6 Luna

GPT-5.6 Luna leads 4 of 6 shared benchmarks. GPT-5.6 Luna is 3.2x cheaper per token. GPT-5.6 Luna has the larger context window (1.1M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
2 – 4
GPT-5.6 Luna leads
Cheaper per token
GPT-5.6 Luna
3.2x cheaper, input + output
Larger context
GPT-5.6 Luna
1.1M tokens
Provider uptime (30d)
100% · 94.2446%
Google · OpenAI
Gemini 3.7 Flash
Google · released 2026-08-13
textvisionaudio
Context
1.0M
Max out
66K
Input /1M
$0.75
Output /1M
$3.75
Cached /1M
$0.075
Scores
14 · 6 core
GPT-5.6 Luna
OpenAI · released 2026-07-09
textvision
Context
1.1M
Max out
128K
Input /1M
$0.2
Output /1M
$1.2
Cached /1M
$0.02
Scores
8 · 6 core
Quality

Benchmark matrix

BenchmarkGemini 3.7 FlashGPT-5.6 LunaΔEdge
Reported by both · 6
GPQA Diamond94.8% epoch92.3% +2.5 ptGemini 3.7 Flash
DeepSWE v1.165.3% 67.2% -1.9 ptGPT-5.6 Luna
FrontierMath Tier 4 v2 (Epoch AI run)36.6% epoch61% epoch-24.4 ptGPT-5.6 Luna
FrontierMath Tiers 1-3 v2 (Epoch AI run)71.6% epoch82.1% epoch-10.5 ptGPT-5.6 Luna
OTIS Mock AIME 2024-2025 (Epoch AI run)97.2% epoch98.3% epoch-1.1 ptGPT-5.6 Luna
SimpleQA Verified69.2% epoch41% epoch+28.2 ptGemini 3.7 Flash
Only Gemini 3.7 Flash reports · 8
Artificial Analysis Intelligence Index56 not reported
Code Arena1588 not reported
FrontierCode 1.143.6% not reported
GDPVal-AA v21525 not reported
HLE-Verified53.6% not reported
OSWorld-2.047.9% not reported
Terminal-bench 2.185.8% not reported
Terminal-bench 3.014.9% not reported
Only GPT-5.6 Luna reports · 1
SWE-Bench Pronot reported62.7%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Gemini 3.7 Flash minus GPT-5.6 Luna in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecGemini 3.7 FlashGPT-5.6 LunaEdge
Context window1.0M tokens1.1M tokensGPT-5.6 Luna
Max output66K tokens128K tokensGPT-5.6 Luna
Input price / 1M$0.75 $0.2 GPT-5.6 Luna
Output price / 1M$3.75 $1.2 GPT-5.6 Luna
Cached input / 1M$0.075 $0.02 GPT-5.6 Luna
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$4.5$1.4GPT-5.6 Luna
Modalitiestext · vision · audiotext · visionGemini 3.7 Flash
Released2026-08-132026-07-09
Cited benchmark scores148
Reliability

Provider status

All providers
More matchups

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Which one wins on your data?

Public benchmarks are a starting point. Run Gemini 3.7 Flash and GPT-5.6 Luna on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.