This is ForecastNest’s 1 day forecast for BTC, created 2026-09-14 14:26 UTC. The window closed 2026-09-15 14:26 UTC, when BTC closed at $76353.45, down 2.5% from $78313.41 when the forecast was made. It traded between $76094.68 and $79568.04 along the way (-2.8% to +1.6%).
Prediction window: Continuous elapsed hours / calendar days; crypto trades 24/7.
Prediction time: 2026-09-14 14:26 UTC (9/14/2026, 10:26:52 AM EDT).
Valid until: 2026-09-15 14:26 UTC (9/15/2026, 10:26:52 AM EDT). Lead time to expiry: 24 elapsed hours. Timing: Crypto · 24/7. Based on stored prediction time, not verified model execution time.
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3 of the 6 models called a direction, and 3 of those calls were right. Each model is also asked to find the price it was forecasting from when it answers, shown as the dashed line inside its box in the picture below. All models except Claude Sonnet 4.5 found it accurately.
Below are the details.
| Model | Range | Move | Confidence | Price it found | Score | Result |
|---|---|---|---|---|---|---|
| Claude Opus 5 | $75700.00–$79900.00 | -2.7% to +2.7% | 57% | $77800.00 | 52.7 | no call |
| Muse Spark 1.1 | $76500.00–$79800.00 | -2.3% to +1.9% | 55% | $78322.00 | 79.7 | right |
| Gemini 1.5 Pro | $76800.00–$79200.00 | -1.9% to +1.2% | 70% | $78282.00 | 80.3 | right |
| Grok 4.5 | $76200.00–$79500.00 | -2.3% to +1.9% | 40% | $78000.00 | 78.7 | right |
| Claude Sonnet 4.5 | $75800.00–$79200.00 | -2.2% to +2.2% | 62% | $77500.00 | 51.2 | no call |
| GPT-6 | $76376.00–$80376.00 | -2.6% to +2.6% | 55% | $78376.01 | 52.6 | no call |
How these models have done on BTC over 1 day
This forecast is settled and is included in the statistics below. The remaining records are forecasts created before 2026-09-14 14:26 UTC. Only settled directional calls count toward accuracy.
| Model | Asked | Still open | No call | Called up | Called down | Right |
|---|---|---|---|---|---|---|
| Gemini 1.5 Pro | 7 | — | 1 | 2 · 2 right | 4 · 4 right | 100% (6/6) |
| Claude Opus 5 | 4 | — | 1 | — | 3 · 2 right | 67% (2/3) |
| Muse Spark 1.1 | 4 | — | 1 | — | 3 · 2 right | 67% (2/3) |
| Grok 4.5 | 7 | — | 4 | 2 · 1 right | 1 · 1 right | 67% (2/3) |
| GPT-6 | 7 | — | 2 | — | 5 · 3 right | 60% (3/5) |
| Claude Sonnet 4.5 | 1 | — | 1 | — | — | — |
Every published BTC forecast these models made over 1 day before this question was asked, on 2026-09-14 14:26 UTC, plus this settled forecast. Forecasts created after this question are excluded. Results reflect the settlements available when this article is generated. A day-ahead call and a week-ahead one are counted separately — they are different questions. Only settled forecasts are graded, so open + no call + up + down adds up to asked. “No call” is a range too centred on the price to be pointing anywhere. Accuracy counts only forecasts that have settled, and the count behind it is shown beside it — a single right call is not a 100% record.
What each model said
Claude Opus 5
Result: no call
View full reasoning
(1) What I found, and where: BTC is higher on the day and decoupling from equities. CoinDesk's Monday live blog has bitcoin up about 1% over 24 hours at $77,800, with ether up 1% at $2,500 (coindesk.com/tech/2026/09/14/live-updates-bitcoin-manages-small-gains-as-stocks-drop-on-ai-concern-oil-surges). A separate CoinDesk markets piece reports BTC added as much as 1.9% since midnight UTC to an intraday high of $78,280, with ether up 2.1% and XRP up 3.3% (coindesk.com/markets/2026/09/14/bitcoin-climbs-to-usd78-000-as-crypto-sits-out-the-ai-selloff). CryptoSlate's price page had $77,678.13 at 7:42 ET (cryptoslate.com). Inline tickers across those pages ranged $77,568 to $77,898. I anchor at $77,800. My freshest source is within roughly ten minutes of the 14:26 UTC baseline but I cannot verify it postdates it, so I am labelling data_access 'partial' rather than claiming 'live'.
(2) Market regime: a genuine intraday decoupling inside an unresolved macro setup. Global AI and semiconductor stocks sold off after Anthropic CEO Dario Amodei's weekend essay urging slower frontier development, with Sam Altman and Elon Musk agreeing; Nvidia fell 2.4% premarket, Intel 5.6%, Marvell 6.3%, and South Korea's Kospi slid 3.26%. Nasdaq 100 futures were down 1.65%, gold fell 0.8%, silver 1.7%, and the Dollar Index firmed 0.5% (coindesk.com, cryptonews.net). Crypto went the other way, with all but six CoinDesk 100 constituents higher, the broadest advance in two weeks. The internals support a grind rather than a squeeze: aggregate open interest of $59.7 billion on $62.7 billion of 24-hour volume, only $127.8 million liquidated, half Friday's total, BTC open interest up 2.07% to $24.8 billion and funding positive and rising, per Coinalyze via CoinDesk. That said, BTC remains below the month's high of $82,284 and is climbing back into the $77,000-$80,000 zone where CryptoQuant data shows long-term holders distributed 539,000 coins this year, and where rallies were rejected twice last week.
(3) Price range: anchored at $77,800 and placed close to symmetric on purpose, because my 1-day read is genuinely neutral rather than undecided. I am using a daily sigma near 2.3%, appropriate for a weekday session carrying both a macro shock and a binary legislative event, giving roughly $75,700 to $79,900, or about -2.7% to +2.7%. The upper bound sits just under the $80,000 supply shelf that has capped every attempt this month, including Friday's $79,890 high; the lower bound sits under the $76,000-$76,500 floor defended four times in the past week. Momentum argues for the upper half, overhead supply and a firming dollar argue for the lower, and I do not think the evidence separates them.
(4) Catalysts inside the window: the US Senate holds a procedural cloture vote on the CLARITY Act on Tuesday 15 September, which CoinDesk describes as genuinely uncertain; Polymarket odds of the bill being signed into law in 2026 have risen to about 30% from a low of 12% at the start of September, while Compass Point's base case remains a failed vote (coindesk.com daybook). Senate votes typically fall in the afternoon, so the result itself may land just outside the window while the positioning into it sits squarely inside. August retail sales, Empire State manufacturing and industrial production print Tuesday at 8:30 and 9:15 ET, inside the window. The FOMC decision, Summary of Economic Projections and press conference are Wednesday 16 September, outside it. Oil remains a live wire, with Brent up 3.6% to $108.31 after Saudi Arabia shut the East-West pipeline that bypasses the Strait of Hormuz (Reuters via cryptoslate.com).
(5) Strongest counter-argument: on both sides, which is why the call is neutral. The bearish case is that this decoupling is fragile and thinly justified. CoinDesk itself notes there is no crypto-specific catalyst behind the move, the Dollar Index is firming 0.5% on hike bets, gold is falling on the same bets, and BTC's four-day ETF outflow streak through 11 September has not yet been shown to have reversed. If the AI selloff broadens into general risk-off, crypto has historically joined late rather than escaped. The bullish case is that positive and rising funding, broad CoinDesk 100 participation and low liquidations describe real spot demand, and a successful cloture vote would be a genuine catalyst against a market positioned for failure. A decisive reclaim of $79,000 with sustained funding would confirm the upside; a loss of $76,500 alongside a broader equity retreat would confirm the downside.
(6) Why 57%: the anchor is strong, corroborated across four sources within minutes of the baseline, and the band is wide enough for a volatile session. The confidence reflects the range, not a direction, because I am explicitly abstaining on direction for this window. The setup contains a real momentum signal pointing up, a real supply and dollar signal pointing down, and a binary vote sitting at the window's edge whose base case among at least one research desk is failure. Naming a direction here would be manufacturing one.
Muse Spark 1.1
Result: right
View full reasoning
(1) What you found, and where: Finnhub Binance feed shows Current Price $78,322.01, Open $77,067.07, High $78,649.17, Low $76,388.72, Change +1,254.93 +1.62% as of Sep 14 2026. Cross-check: Convex reports $77,971.3 Sep 14, OKX reports $77,390 USD conversion, NowPrice $78,092.01 spot, Alpaca bar shows BTC closed $77,559.1745 on 5-min bar ending 2026-09-14 04:00 UTC per theagenttimes, and rateweb.co.za reports R1,258,307 +0.61% Sep 14. 24/7 Wall St notes BTC trades at $77,278 Sep 12 after 3.26% weekly pullback.
(2) The current market regime as you read it: Choppy bear consolidation with intraday bounce. 5-day return -0.82%, 1-month +23.11%, YTD -12.58%, 1-year -32.67% per Finnhub. Volatility expanded to ~$1,500 range in 24h per theagenttimes. After testing below $77k on hot PPI, BTC is attempting recovery toward $78.6k but remains below $79k resistance noted in prior CoinDesk coverage. Regime is range-bound ahead of Sep 15-16 FOMC, with high correlation to yields and risk.
(3) Price range justification, with the levels and volatility you are using: Anchored to $78,322 current. Using observed high $78,649 and low $76,388 from Finnhub and intraday Polymarket odds swing for $78,000 level from 11.5% to 33.5% in an hour indicating battle around $78k. ATR ~2% suggests ~$1,500 move. Set lower bound $76,500 near low of day and prior $76,046 support, upper bound $79,800 near Sep high rejection $79k-79,890. Slightly symmetric with mild upside skew because bounce +1.6% today shows short-term momentum, but not strongly directional, hence neutral 1d signal.
(4) Scheduled or likely catalysts inside the window: Window Sep 14 14:26 UTC for 24h covers end of Sunday and start of Monday trading. Main catalyst is positioning into FOMC Sep 15-16 with hike odds 58-86% and oil Brent $106.69-$109.36 adding inflation concern. No major US data inside this exact 24h after Sep 11-12 CPI/PPI. Crypto-specific: ETF flows, Polymarket Sep 14 price market resolution at 4pm UTC with thin volume $11k but liquidity $240k per Lines.com, could cause micro volatility.
(5) The strongest counter-argument, and what would invalidate your call: Bear case: hot oil and rising yields could push BTC back below $76,500 low if risk-off accelerates into Fed meeting. Bull case: sustained break above $78,649 high with volume could extend to $79.8k and invalidate mild bearish longer-term view. With weekend liquidity thin, moves can be exaggerated. Invalidation: 4h close above $79,800 or below $76,500 with stablecoin outflow would flip regime.
(6) Why your confidence is the number it is: Confidence 55% reflects live price from Finnhub dated after baseline and multiple corroborating sources Sep 14, but directional conviction low because 1-day move is dominated by FOMC positioning noise and conflicting signals (YTD bear vs 1-month +23% bounce). Labeling live because quote is dated Sep 14 after window start, but not overstating due to mixed momentum and thin weekend liquidity.
Gemini 1.5 Pro
Result: right
View full reasoning
(1) Data sources: I accessed live pricing data via Google Search showing Bitcoin trading at $78,282 as of 14:25 UTC on September 14, 2026. I also reviewed market context from the Economic Times and FinanceFeeds detailing pre-FOMC sentiment and recent ETF outflows.
(2) Market regime: The market is currently cautious and defensive. Hotter-than-expected CPI data has pushed the probability of a 25-basis-point rate hike at the upcoming September 16 Federal Reserve meeting above 80%, leading to ETF outflows and a tougher macroeconomic environment driven by higher Treasury yields.
(3) Price range: I project a 24-hour range of $76,800-$79,200. Bitcoin has recovered from its Friday lows but faces significant resistance near $78,500 to $79,000. Staggered support is well-defined in the $76,600 to $77,000 band, which should hold barring a severe macro shock.
(4) Scheduled catalysts: Price action over the next 24 hours will be dictated by defensive repositioning ahead of the September 15-16 FOMC meeting. With no major economic data scheduled for the immediate session, traders will likely trim leverage, keeping volatility contained but sensitive to any macro headlines.
(5) The strongest counter-argument: An unexpected dovish leak regarding the Fed's rate path or a sudden resurgence of institutional ETF inflows could easily spark a short-covering rally, pushing BTC aggressively through the $79,000 resistance and invalidating the bearish bias.
(6) Confidence: My confidence is 70%. The overarching technical and fundamental landscape suggests a tight, sideways-to-downward consolidation before the FOMC meeting, though crypto's inherent short-term volatility always presents outlier risks.
Grok 4.5
Result: right
View full reasoning
(1) What you found, and where: Live and session data from OKX (intraday high near $78,373), Twelvedata (~$77,800-$78,000), MarketWatch CoinDesk index (~$78,411), Investing.com (~$77,900), and related feeds place BTC near $78,000 as of the 14:26 UTC window start. Price has recovered from weekend levels near $76,500-$77,000.
(2) The current market regime as you read it: Bitcoin is consolidating with a mild intraday bounce while broader risk assets face pressure from AI-sector concerns and elevated Fed-hike odds ahead of the September 16 FOMC decision. Oil-driven inflation worries and equity weakness provide a mixed backdrop; crypto has shown relative resilience today compared with Nasdaq-heavy names but remains sensitive to macro positioning.
(3) Price range justification, with the levels and volatility you are using: Anchored at $78,000, the $76,200-$79,500 band reflects recent daily ranges of $1,500-$3,000 and typical Monday volatility. Downside allows a retest of the weekend support cluster; upside is limited near recent intraday highs without a clear risk-on catalyst, producing a modestly balanced-to-slightly-skewed range.
(4) Scheduled or likely catalysts inside the window: No major crypto-specific events fall inside the immediate 24-hour window. The dominant influence is positioning ahead of the September 15-16 FOMC meeting and any further moves in oil or equity risk sentiment.
(5) The strongest counter-argument, and what would invalidate your call: A sharp risk-off cascade tied to further equity weakness or a hawkish Fed narrative could push BTC back below $76,200. Conversely, a decisive break and hold above $79,500 on positive macro or flow news would invalidate the neutral-to-mildly constructive short-term stance.
(6) Why your confidence is the number it is: Confidence is modest at 40% because the 1-day window sits inside an already-active session with elevated but unresolved macro event risk, recent price action has been choppy, and directional edge remains limited relative to normal crypto noise.
Claude Sonnet 4.5
Result: no call
View full reasoning
(1) What I found: Bitcoin was trading around $77,462 at 12:09 IST on September 14, having recovered from an intraday low near $76,452, according to Moneycontrol. KuCoin's daily report (data as of 00:00 UTC) showed BTC at $76,849, down 0.56%. Other sources cited $77,602 (cnyes.com) and $77,816 (CoinMarketCap community). The 24-hour range spans roughly $76,400-$78,100. Spot BTC ETFs recorded approximately $463 million in cumulative net outflows over the four sessions ending September 11, per KuCoin, with ETH ETFs attracting roughly $197 million in net inflows over the same period.
(2) Current market regime: The dominant driver is the Federal Reserve. Markets assign an 85-87% probability to a 25-basis-point rate hike at the September 15-16 FOMC meeting, following hawkish comments from Chair Kevin Warsh at Jackson Hole and a hotter-than-expected core CPI reading of 0.3% month-over-month. The 10-year Treasury yield has climbed to approximately 4.97%. Geopolitical risk has intensified after an attack shut Saudi Arabia's East-West oil pipeline, pushing Brent crude toward $107.50 and adding to inflation concerns. Capital is rotating out of BTC into ETH, as evidenced by divergent ETF flows, suggesting institutional investors are not abandoning crypto but are reducing Bitcoin exposure.
(3) Price range justification: I am anchoring to $77,500 as the approximate level where BTC was trading near the 14:26 UTC window start. The immediate support zone is $76,000-$76,500, a level that has been defended repeatedly and where buyers have shown interest. Below that, $75,000 is a critical threshold identified by Glassnode, and a sustained break would open the $71,000-$72,000 area. On the upside, the first resistance sits at $78,000-$79,000, followed by a heavier supply wall at $79,600-$80,500. The $83,000-$85,000 zone represents the long-term holder cost basis. Given the bearish macro backdrop and the compression between $76K support and $79K resistance, I expect BTC to spend more time in the lower half of this range, with $75,800-$79,200 covering the likely session extremes.
(4) Catalysts inside the window: The primary catalyst is pre-positioning ahead of the FOMC decision on September 16. There are no major U.S. economic data releases scheduled for September 14. The revised Clarity Act text from Senate Republicans, with a cloture vote due Tuesday, is a potential positive catalyst for crypto sentiment, though its immediate impact may be limited. Any escalation in Middle East tensions or further oil price spikes could trigger additional risk-off selling.
(5) Counter-argument and invalidation: The strongest counter-argument is that the Fed hike is already largely priced in, and if the actual decision or accompanying statement is less hawkish than feared, risk assets including Bitcoin could rally sharply. Additionally, the Clarity Act progress could provide a regulatory tailwind. BTC has also shown resilience in defending the $76K area, and a clean break above $79,000 on strong volume would invalidate the bearish short-term thesis.
(6) Confidence: I am at 62% because the macro setup is clearly bearish for non-yielding assets, with rate hike odds near 90% and Treasury yields approaching 5%. However, Bitcoin's ability to hold the $76K support zone and the potential for a positive regulatory surprise from the Clarity Act introduce meaningful uncertainty. The window is short, and positioning flow ahead of the Fed will likely dominate.
GPT-6
Result: no call
View full reasoning
(1) Price and access: Coinbase displayed $78,376.01, while Investing.com displayed $78,315.60 with a 10:07:13 clock label. I use Coinbase's figure as my best baseline estimate, but its retrieved page does not establish an exact UTC quote timestamp. The exchange ticker API failed, so I cannot certify the price at September 14, 14:26 UTC or claim live access under the requested definition. [Coinbase quote](https://www.coinbase.com/price/bitcoin), [Investing.com quote](https://www.investing.com/crypto/bitcoin).
(2) Market regime: Coinbase's displayed comparison prices imply approximately a 2.13% daily advance and a 1.58% weekly decline. That supports a short-term recovery within a weaker weekly trend. Farside reports approximately $462.7 million of September 8-11 ETF outflows, but Friday's redemptions slowed to $13.2 million; Monday's row contains missing issuer values and cannot establish today's flows. My inference is mildly bullish momentum over several hours but insufficient evidence for a directional 24-hour call. [ETF flows](https://farside.co.uk/btc/).
(3) Range justification: The forecast runs through September 15 at 14:26 UTC. The $76,376-$80,376 range deliberately allows approximately $2,000, or 2.55%, on either side of the anchor, expressing neutrality. Investing.com's displayed session range of $76,431.60-$78,455.90 spans about $2,024; I allow roughly that distance in either direction to accommodate further recovery or a substantial reversal. These are scenario bounds, not a statistically fitted interval. [Session range](https://www.investing.com/crypto/bitcoin).
(4) Catalysts: The September 15 Empire State Manufacturing Survey is scheduled at or shortly after 08:30 ET, approximately 12:30 UTC, inside the window. Monday's ETF activity may also clarify institutional demand. Reporting flags a possible September 15 CLARITY Act vote, but I could not verify its exact timing, so it is a headline risk rather than a confirmed in-window event. The September 16 Fed decision is outside the forecast. [New York Fed schedule](https://www.newyorkfed.org/survey/empire/empiresurvey_overview), [CLARITY reporting](https://uk.investing.com/news/cryptocurrency-news/bitcoin-steady-at-777k-amid-meast-tensions-rate-hike-jitters-4867133), [Fed calendar](https://www.federalreserve.gov/newsevents/2026-september.htm).
(5) Counterargument: Bitcoin's recovery despite reported oil and rate concerns could indicate stronger demand than a neutral forecast recognizes. Sustained expansion above the retrieved session high near $78,456 would strengthen the continuation case. Conversely, a return toward the session low near $76,432 would suggest the rebound is failing; fresh ETF redemptions or adverse policy headlines could push prices below the proposed range.
(6) Confidence: The 55% figure is my subjective probability that the entire 24-hour price path remains within the range, not the probability of an unchanged ending price. Unverified baseline timing, unavailable synchronized funding and open-interest data, and policy uncertainty limit confidence. The short-term recovery and weekly headwinds justify different signals across horizons.
Read this comparison on ForecastNest, where it stays up to date if a score is ever recomputed.
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