{
  "model": "gpt-live-1-two-meter-cost-v1",
  "as_of": "2026-09-10",
  "generated_from": "https://aiagencycalculator.com/gpt-live-1-cost-calculator",
  "month_definition": {
    "primary_days": 30,
    "alternatives": {
      "alt_31_days": 31,
      "alt_365_over_12": 30.416666666666668
    },
    "note": "OpenAI defines no month; each monthly figure states the day count used."
  },
  "published_constants": {
    "voice_rate_per_minute_usd": 0.05,
    "voice_billing_rounding": "none",
    "voice_init_seconds": 15,
    "voice_init_scope": "webrtc",
    "billable_time_basis": "active_session",
    "backend_rates_per_1m_usd": {
      "gpt-5.6-terra": {
        "label": "GPT-5.6 Terra",
        "inRate": 2,
        "cachedRate": 0.2,
        "cacheWriteRate": 2.5,
        "outRate": 12,
        "longInRate": 4,
        "longCachedRate": 0.4,
        "longCacheWriteRate": 5,
        "longOutRate": 18,
        "published": true
      },
      "gpt-5.6-luna": {
        "label": "GPT-5.6 Luna",
        "inRate": 0.2,
        "cachedRate": 0.02,
        "cacheWriteRate": 0.25,
        "outRate": 1.2,
        "longInRate": 0.4,
        "longCachedRate": 0.04,
        "longCacheWriteRate": 0.5,
        "longOutRate": 1.8,
        "published": true
      },
      "gpt-6-astra": {
        "label": "GPT-6 Astra",
        "inRate": 10,
        "cachedRate": 1,
        "cacheWriteRate": 12.5,
        "outRate": 50,
        "longInRate": 20,
        "longCachedRate": 2,
        "longCacheWriteRate": 25,
        "longOutRate": 75,
        "published": true
      },
      "gpt-5.6-sol": {
        "label": "GPT-5.6 Sol",
        "inRate": 4,
        "cachedRate": 0.4,
        "cacheWriteRate": 5,
        "outRate": 20,
        "longInRate": 8,
        "longCachedRate": 0.8,
        "longCacheWriteRate": 10,
        "longOutRate": 30,
        "published": true
      },
      "gpt-5.6-cyber": {
        "label": "GPT-5.6 Cyber",
        "inRate": 12.5,
        "cachedRate": 1.25,
        "cacheWriteRate": 15.625,
        "outRate": 75,
        "longInRate": null,
        "longCachedRate": null,
        "longCacheWriteRate": null,
        "longOutRate": null,
        "published": true
      },
      "custom": {
        "label": "Custom / third-party",
        "inRate": 2,
        "cachedRate": 0.2,
        "cacheWriteRate": 2.5,
        "outRate": 12,
        "longInRate": 4,
        "longCachedRate": 0.4,
        "longCacheWriteRate": 5,
        "longOutRate": 18,
        "published": false
      }
    },
    "concurrent_session_tier_ceilings": {
      "1": {
        "ceiling": 25,
        "paid": "$5 paid",
        "perMonth": "$100/mo"
      },
      "2": {
        "ceiling": 50,
        "paid": "$50 paid",
        "perMonth": "$500/mo"
      },
      "3": {
        "ceiling": 200,
        "paid": "$100 paid",
        "perMonth": "$1,000/mo"
      },
      "4": {
        "ceiling": 300,
        "paid": "$250 paid",
        "perMonth": "$5,000/mo"
      },
      "5": {
        "ceiling": 500,
        "paid": "$1,000 paid",
        "perMonth": "$200,000/mo"
      }
    },
    "free_tier_supported": false,
    "realtime_comparison_model": {
      "model": "gpt-realtime-2.1",
      "audioInRate": 32,
      "audioCachedRate": 0.4,
      "audioOutRate": 64,
      "textInRate": 4,
      "textOutRate": 24,
      "imageInRate": 5,
      "scope": "audio rows only"
    },
    "data_residency_uplift": 0.1,
    "service_tiers": [
      "auto",
      "default",
      "flex",
      "priority"
    ]
  },
  "provenance": {
    "voice.ratePerMinute": "openai-published",
    "voice.ratePerSecond": "derived",
    "voice.initSeconds": "openai-published",
    "voice.initScope": "openai-published",
    "voice.rounding": "openai-published",
    "voice.billableBasis": "openai-published",
    "backends.*.inRate": "openai-published",
    "backends.*.cachedRate": "openai-published",
    "backends.*.outRate": "openai-published",
    "backends.*.long*.Rate": "openai-published",
    "dataResidencyUplift": "openai-published",
    "tiers.*.ceiling": "openai-published",
    "freeTier.supported": "openai-published",
    "realtime.audioInRate": "openai-published",
    "realtime.audioOutRate": "openai-published",
    "callsPerDay": "our-assumption",
    "callMm": "our-assumption",
    "callSs": "our-assumption",
    "operatingHoursPerDay": "our-assumption",
    "peakFactor": "our-assumption",
    "turnsPerCall": "our-assumption",
    "inTokensPerTurn": "our-assumption",
    "outTokensPerTurn": "our-assumption",
    "toolSharePct": "our-assumption",
    "toolCostPerInvocation": "our-assumption",
    "toolExtraInTokens": "our-assumption",
    "cachedSharePct": "our-assumption",
    "idleSharePct": "our-assumption",
    "realtimeAudioInPerMin": "our-assumption",
    "realtimeAudioOutPerMin": "our-assumption",
    "monthDays": "our-assumption"
  },
  "sources": {
    "P1": "https://openai.com/index/introducing-gpt-live-1-in-the-api/",
    "P2": "https://developers.openai.com/api/docs/models/gpt-live-1",
    "P3": "https://developers.openai.com/api/docs/pricing",
    "P4": "https://developers.openai.com/api/docs/guides/voice-latency-cost",
    "P5": "https://developers.openai.com/api/docs/guides/live",
    "P6": "https://developers.openai.com/api/docs/guides/live-migration",
    "P7": "https://developers.openai.com/api/docs/guides/live-conversations",
    "P8": "https://developers.openai.com/api/docs/guides/live-delegation",
    "P9": "https://developers.openai.com/api/docs/guides/voice-webrtc",
    "P10": "https://developers.openai.com/api/docs/guides/voice-websockets",
    "P11": "https://developers.openai.com/api/docs/guides/rate-limits"
  },
  "parameters": {
    "transport": "webrtc",
    "callsPerDay": 1000,
    "callMm": 4,
    "callSs": 0,
    "operatingHoursPerDay": 8,
    "peakFactor": 1,
    "backendModel": "gpt-5.6-terra",
    "longContext": false,
    "dataResidency": false,
    "cachedSharePct": 0,
    "turnsPerCall": 6,
    "inTokensPerTurn": 1500,
    "outTokensPerTurn": 300,
    "toolSharePct": 35,
    "toolCostPerInvocation": 0,
    "toolExtraInTokens": 0,
    "idleSharePct": 30,
    "realtimeAudioInPerMin": 600,
    "realtimeAudioOutPerMin": 600,
    "tier": "auto",
    "monthDays": 30
  },
  "results": {
    "voice_cost_usd_per_call": 0.2,
    "voice_billed_seconds_per_call": 240,
    "backend_model_usd_per_call": 0.039599999999999996,
    "backend_tools_usd_per_call": 0,
    "backend_usd_per_call": 0.039599999999999996,
    "backend_share_of_total": 0.16527545909849747,
    "total_usd_per_call": 0.2396,
    "voice_usd_per_day": 200,
    "backend_usd_per_day": 39.599999999999994,
    "total_usd_per_day": 239.6,
    "voice_usd_per_month": 6000,
    "backend_usd_per_month": 1187.9999999999998,
    "total_usd_per_month": 7188,
    "peak_concurrent_sessions_required": 8.333333333333334,
    "average_concurrent_sessions_required": 8.333333333333334,
    "tier_checked": 1,
    "tier_fits": true,
    "capacity_limited_before_budget_limited": false,
    "realtime_usd_per_minute": 0.0576,
    "flat_rate_breakeven_audio_tokens_per_min": 1041.6666666666667
  },
  "formulas": {
    "billed_voice_seconds": "max(session_seconds, 15) if transport == \"webrtc\" else session_seconds",
    "voice_cost": "billed_voice_seconds / 60 * 0.05",
    "backend_cost": "sum(turns * (uncached_in * in_rate + cached_in * cached_rate + out_tokens * out_rate) / 1e6) + tool_turns * tool_cost_per_invocation",
    "total_cost": "voice_cost + backend_cost",
    "required_concurrent_sessions": "calls_per_day / operating_hours * avg_call_seconds / 3600 * peak_factor"
  },
  "assumptions_note": "Parameters marked \"our-assumption\" in provenance are modelling choices, not OpenAI figures. Rates marked \"openai-published\" are reproduced from the sources above as of the as_of date."
}