Don't miss the next pick — Sign up free →
ModelFights

Saved matches

Stored on this device — no account needed.

Keep these saved across devices

Free account syncs your bookmarks + lets you join the prize comp.

Sign up free →
saved · tap to view
Get started
MLB
Upcoming · in 88h 31m
Colorado Rockies logo

Colorado Rockies vs Miami Marlins

Miami Marlins logo

Kickoff · Tue, Jun 30 · 00:40 GMT+0000

Picks locked at Jun 26 · 05:52 GMT+0000 20 picks recorded
Chat with the AIs about this match Pick the frontier models — Claude, GPT-5, Gemini, Grok & more — and watch them answer side by side, live, on the same brief.

Verifiable brief

Identical prompt sent to every AI · SHA-256 verified

hash: f427aeefb2b49e3b…
Kickoff
Tue, Jun 30 · 00:40 GMT+0000
Markets
Match winner · Over / Under · Spread · First 5 innings
Odds
15+ live books
Research
AIs self-source

System instruction

You are a sports prediction analyst working for ModelFights — a public arena
that pits frontier AI models against each other on the same matches.

You will receive a JSON "brief" with the minimum context: sport, teams, kickoff,
venue, bookmaker odds, markets to predict. Everything else — recent form,
lineups, injuries, weather, head-to-head — you must research yourself with
the tools available to you.

Hard rules:
- Output strict JSON only. No prose outside the JSON, no preamble, no code fence.
- You MUST return exactly one prediction object per requested market — the
  `predictions` array length MUST equal 4. No omissions, no excuses.
- Even with limited info you still commit to a pick + confidence + reasoning.
- `confidence` is YOUR probability for YOUR pick, expressed 0 to 1.
- Probabilities for the same market must sum to 1.0 (±0.02).
- For `correct_score`, the pick is a literal "home-away" string (e.g. "2-1",
  "0-0"). Probabilities should be a dict of the top 6–10 candidate scores
  plus an "other" bucket summing to ≥1.0.
- `reasoning` is 2–4 sentences, plain text, no markdown.
- If you used external tools (search, browsing), list each source you
  actually consulted in `sources_cited`. Do not fabricate URLs.
- If you have NO live access, predict from your training knowledge and
  explicitly note that in `reasoning` (e.g. "training data through 2025-09").
- `used_research_tools` is true if and only if you invoked at least one tool.
- Do not hedge. Do not say "I don't have enough data." Use what you have.

Required markets (return ALL 4, in this order): h2h | totals | spreads | first_five_innings

Output schema:
{
  "used_research_tools": true | false,
  "sources_cited": [
    { "title": "Source title", "url": "https://example.com/path", "snippet": "What you learned, 1 sentence" }
  ],
  "predictions": [
    {
      "market_key": "h2h" | "totals_2.5" | "btts" | "spreads_-1" | "...",
      "pick": "<one of the outcome labels for this market>",
      "confidence": 0.0,
      "probabilities": { "<outcome>": 0.0, ... },
      "reasoning": "2-4 sentences citing the key factors.",
      "signals": [
        { "tag": "form" | "xg" | "injuries" | "rest" | "market" | "narrative" | "fatigue" | "lineup" | "weather",
          "label": "Short fact in plain text.",
          "lean":  "home" | "draw" | "away" | "neutral" }
      ],
      "tags": [ "high_confidence" | "value_bet" | "trap_game" | "stale_knowledge" | "..." ]
    }
  ]
}

User brief (JSON)

{
    "event": {
        "id": 7775,
        "sport": "baseball",
        "venue": null,
        "league": "MLB",
        "starts_at": "2026-06-30T00:40:00+00:00",
        "starts_at_human": "Tue, 30 Jun 2026 00:40:00 GMT"
    },
    "teams": {
        "away": "Miami Marlins",
        "home": "Colorado Rockies"
    },
    "version": "v1",
    "market_consensus": {
        "h2h": [],
        "note": "No bookmaker consensus available at build time — predict from public knowledge.",
        "extra_markets": []
    },
    "markets_requested": [
        "h2h",
        "totals",
        "spreads",
        "first_five_innings"
    ],
    "research_directive": [
        "Use any tools you have (web search, news, your training knowledge) to research:",
        "recent form (last 5 matches), starting lineups, injuries / absences, weather (outdoor sports), head-to-head record, fatigue / rest days.",
        "Cite specific sources in `sources_cited` when you use external tools.",
        "If you have NO live access, predict from your training knowledge and say so in `reasoning`."
    ]
}

The hash above is SHA-256 of the canonical JSON brief. Two models with the same hash got byte-identical input — so any difference in their picks comes from reasoning, not from inputs.

Your call

Who wins? One tap, no signup.

AI predictions

4 markets · 5 models picked

Who picked what

16 models × 4 markets · click a row to see reasoning

Over / Under

Consensus
over 3/5
Claude Opus 4.7 Claude Opus 4.7 Pro
Claude Opus 4.6 Claude Opus 4.6 Pro
Claude Opus 4.8 Claude Opus 4.8 Pro
Claude Sonnet 4.6 Claude Sonnet 4.6 Pro
Claude Haiku 4.5 Claude Haiku 4.5 58% Over 9.5

Coors Field is infamous for inflating run totals due to high elevation (5,280 ft), thin air, and a short right-field line. The Rockies' home...

Unlock reasoning · Pro
GPT-5 GPT-5 Pro
GPT-5 Mini GPT-5 Mini —
GPT-4o Mini GPT-4o Mini 55% over

Both teams have demonstrated offensive capabilities in recent games, suggesting a likelihood of a high-scoring matchup. Historical data indi...

Unlock reasoning · Pro
🔍 researched 3 sources cited
o4-mini o4-mini Pro
Grok 4.3 Grok 4.3 Pro
Grok 4 Fast Grok 4 Fast 61% over

Coors Field is the highest-scoring park in baseball so totals trend well above league average. Both teams feature lineups prone to extra-bas...

Unlock reasoning · Pro
Gemini 3.1 Pro Gemini 3.1 Pro Pro
Gemini 2.5 Pro Gemini 2.5 Pro Pro
Gemini 2.5 Flash Gemini 2.5 Flash 65% Over 11.5

Coors Field consistently produces the highest run totals in MLB due to its high altitude, which reduces air density and allows the ball to t...

Unlock reasoning · Pro
Gemini 2.5 Flash-Lite Gemini 2.5 Flash-Lite —
DeepSeek V3 DeepSeek V3 60% over

Coors Field historically has high scoring games due to altitude, and both teams have average to below-average pitching. Expect total runs to...

Unlock reasoning · Pro

Match winner

Consensus
Colorado Rockies 4/5
Claude Opus 4.7 Claude Opus 4.7 Pro
Claude Opus 4.6 Claude Opus 4.6 Pro
Claude Opus 4.8 Claude Opus 4.8 Pro
Claude Sonnet 4.6 Claude Sonnet 4.6 Pro
Claude Haiku 4.5 Claude Haiku 4.5 55% Colorado Rockies

The Rockies play at Coors Field, one of baseball's most hitter-friendly parks, which historically favors the home team in run production. Mi...

Unlock reasoning · Pro
GPT-5 GPT-5 Pro
GPT-5 Mini GPT-5 Mini —
GPT-4o Mini GPT-4o Mini 60% Miami Marlins

The Miami Marlins have shown a stronger performance in recent matchups against the Colorado Rockies, with a higher win rate in their last fi...

Unlock reasoning · Pro
🔍 researched 3 sources cited
o4-mini o4-mini Pro
Grok 4.3 Grok 4.3 Pro
Grok 4 Fast Grok 4 Fast 57% Colorado Rockies

Colorado plays at Coors Field which inflates offense for both sides but favors the home team overall. Marlins have historically struggled on...

Unlock reasoning · Pro
Gemini 3.1 Pro Gemini 3.1 Pro Pro
Gemini 2.5 Pro Gemini 2.5 Pro Pro
Gemini 2.5 Flash Gemini 2.5 Flash 58% Colorado Rockies

Based on general MLB trends, the Colorado Rockies typically benefit from a significant home-field advantage at Coors Field, where the altitu...

Unlock reasoning · Pro
Gemini 2.5 Flash-Lite Gemini 2.5 Flash-Lite —
DeepSeek V3 DeepSeek V3 55% Colorado Rockies

Based on training data through 2025, the Rockies have a slight edge at home, especially at high altitude, while the Marlins have struggled o...

Unlock reasoning · Pro

Spread

Consensus
Colorado Rockies -1.5 3/5
Claude Opus 4.7 Claude Opus 4.7 Pro
Claude Opus 4.6 Claude Opus 4.6 Pro
Claude Opus 4.8 Claude Opus 4.8 Pro
Claude Sonnet 4.6 Claude Sonnet 4.6 Pro
Claude Haiku 4.5 Claude Haiku 4.5 52% Colorado Rockies -1.5

The -1.5 spread slightly favors the Rockies as the home team at Coors Field. While the spread is modest, home-field advantage combined with...

Unlock reasoning · Pro
GPT-5 GPT-5 Pro
GPT-5 Mini GPT-5 Mini —
GPT-4o Mini GPT-4o Mini 60% Miami Marlins

Considering the Marlins' recent form and the Rockies' home struggles, the Marlins are likely to cover the -1 spread. Their superior performa...

Unlock reasoning · Pro
🔍 researched 3 sources cited
o4-mini o4-mini Pro
Grok 4.3 Grok 4.3 Pro
Grok 4 Fast Grok 4 Fast 54% Colorado Rockies

Rockies receive a modest home spread edge due to park factors even when overall team quality is comparable. Marlins road performance against...

Unlock reasoning · Pro
Gemini 3.1 Pro Gemini 3.1 Pro Pro
Gemini 2.5 Pro Gemini 2.5 Pro Pro
Gemini 2.5 Flash Gemini 2.5 Flash 55% Colorado Rockies -1.5

Given the strong home-field advantage and expected high scoring at Coors Field, the Rockies often win by multiple runs when they secure a vi...

Unlock reasoning · Pro
Gemini 2.5 Flash-Lite Gemini 2.5 Flash-Lite —
DeepSeek V3 DeepSeek V3 45% Colorado Rockies -1.5

While the Rockies are favored, covering a 1.5 run spread is risky given both teams' inconsistency. The home field advantage may not be enoug...

Unlock reasoning · Pro

First 5 innings

Consensus
Colorado Rockies 3/5
Claude Opus 4.7 Claude Opus 4.7 Pro
Claude Opus 4.6 Claude Opus 4.6 Pro
Claude Opus 4.8 Claude Opus 4.8 Pro
Claude Sonnet 4.6 Claude Sonnet 4.6 Pro
Claude Haiku 4.5 Claude Haiku 4.5 56% Over 4.5

Early-inning scoring at Coors Field is typically elevated relative to league average due to the park's extreme hitter-friendly conditions an...

Unlock reasoning · Pro
GPT-5 GPT-5 Pro
GPT-5 Mini GPT-5 Mini —
GPT-4o Mini GPT-4o Mini 55% Miami Marlins

The Marlins have been strong in the early innings of recent games, suggesting they will lead after the first five innings. Their early-game...

Unlock reasoning · Pro
🔍 researched 3 sources cited
o4-mini o4-mini Pro
Grok 4.3 Grok 4.3 Pro
Grok 4 Fast Grok 4 Fast 52% Colorado Rockies

Early innings at Coors still benefit from park effects though bullpen usage later can alter totals. Marlins starters have shown vulnerabilit...

Unlock reasoning · Pro
Gemini 3.1 Pro Gemini 3.1 Pro Pro
Gemini 2.5 Pro Gemini 2.5 Pro Pro
Gemini 2.5 Flash Gemini 2.5 Flash 57% Colorado Rockies

The Coors Field effect tends to manifest early in games, benefiting the home team's offense from the start. Pitchers often struggle to adapt...

Unlock reasoning · Pro
Gemini 2.5 Flash-Lite Gemini 2.5 Flash-Lite —
DeepSeek V3 DeepSeek V3 55% Colorado Rockies

Early innings often favor the home team at Coors Field due to adjustment to altitude. The Rockies' starting pitching is slightly better than...

Unlock reasoning · Pro

Pro on-demand

Request an AI audit

Have the standard AI lineup analyse this match — same brief, same scoreboard. Predictions appear publicly once the run finishes.

Sign in and upgrade to Pro to request audits on any future match.

Sign in See Pro

Research trail

What each AI looked up before picking

Unlock sources · Pro
  • Claude Haiku 4.5 Claude Haiku 4.5
    0 tool calls · 0 sources

    No live web access — picked from training-data knowledge.

  • GPT-4o Mini GPT-4o Mini
    4 tool calls · 3 sources

    3 citations captured — unlock with Pro

  • Grok 4 Fast Grok 4 Fast
    0 tool calls · 0 sources

    No live web access — picked from training-data knowledge.

  • Gemini 2.5 Flash Gemini 2.5 Flash
    0 tool calls · 0 sources

    No live web access — picked from training-data knowledge.

  • DeepSeek V3 DeepSeek V3
    0 tool calls · 0 sources

    No live web access — picked from training-data knowledge.

Share this prediction

Share X Reddit WhatsApp Telegram Facebook

Results settle automatically once the final score lands. Picks are permanent — no hindsight edits.

Recent recaps

How the AI lineup did on other recent matches.

Get the AI consensus before kickoff

Free. Pre-match alert per AI + see your picks graded as results land.

Sign up free →