PRICING SNAPSHOT 2026-08-14CLAUDE FABLE 5 $10.00/$50.00 MTOKCLAUDE OPUS 5 $5.00/$25.00 MTOKCLAUDE OPUS 4.8 $5.00/$25.00 MTOKCLAUDE SONNET 5 $2.00/$10.00 MTOKCLAUDE HAIKU 4.5 $1.00/$5.00 MTOKGPT-5.6 $5.00/$30.00 MTOKGPT-5.5 $5.00/$30.00 MTOKGPT-5.4 $2.50/$15.00 MTOKGPT-5.6 TERRA $2.00/$12.00 MTOKGPT-5 MINI $0.25/$2.00 MTOKGPT-5.6 LUNA $0.20/$1.20 MTOKGEMINI 3.1 PRO $2.00/$12.00 MTOKGEMINI 3.6 FLASH $1.50/$7.50 MTOKGEMINI 3.5 FLASH $1.50/$9.00 MTOKGEMINI OMNI FLASH $1.50/$9.00 MTOKGEMINI 3.7 FLASH $0.75/$3.75 MTOKGEMINI 3 FLASH $0.50/$3.00 MTOKGEMINI 3.5 FLASH LITE $0.30/$2.50 MTOKDEEPSEEK V4 PRO $0.43/$0.87 MTOKDEEPSEEK V4 FLASH $0.14/$0.28 MTOK
TOKENBURN_INDEX

THE TICKER · HEAD-TO-HEAD · CHECKED DAILY · LAST CHANGE 2026-08-14

GPT-5.6 LUNA VS GEMINI 3.7 FLASH

OpenAI vs Google, in USD per million tokens, cross-checked daily against the public pricing dataset. Same jobs, both meters running.

THE VERDICT
3.2x

Gemini 3.7 Flash costs 3.2x more than GPT-5.6 Luna for the same job — a 1,000-token prompt with a 3,000-token reply runs $0.01 vs $0.0038. At 1,000 runs a day, that gap is $246.00 a month for identical traffic.

SIDE BY SIDE

GPT-5.6 Luna →Gemini 3.7 Flash →
VendorOpenAIGoogle
Input / MTok$0.200$0.750
Output / MTok$1.20$3.75
Output multiple6.0x5.0x
1K prompt + 3K reply$0.0038$0.01

SAME JOB, BOTH BILLS

ScenarioGPT-5.6 LunaGemini 3.7 FlashGap
A typical prompt$0.0011$0.00363.2x
A 20-turn conversation$0.0056$0.023.2x
Summarizing a 10-page document$0.0054$0.023.3x
One agent run$0.01$0.053.1x
A code review request$0.0048$0.023.2x

Output sizes use the same editorial ratios as the Burn Calculator. Estimates, not invoices — and price is not a benchmark: the cheaper model is only a bargain if it does the job.

SETTLE IT WITH YOUR OWN PROMPT

Paste a real prompt into the Burn Calculator and see what it costs on GPT-5.6 Luna, Gemini 3.7 Flash and the other 18 models on the board — plus how much of it is waste either way.