This is ForecastNest’s 1 day forecast for BTC, created 2026-09-23 17:07 UTC. The window closed 2026-09-24 17:07 UTC, when BTC closed at $84363.86, up 0.6% from $83873.99 when the forecast was made. It traded between $82851.76 and $84897.04 along the way (-1.2% to +1.2%).
Prediction window: Continuous elapsed hours / calendar days; crypto trades 24/7.
Prediction time: 2026-09-23 17:07 UTC (9/23/2026, 1:07:05 PM EDT).
Valid until: 2026-09-24 17:07 UTC (9/24/2026, 1:07:05 PM 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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6 of the 6 models called a direction, and 4 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 Opus 5 and DeepSeek found it accurately.
Below are the details.
| Model | Range | Move | Confidence | Price it found | Score | Result |
|---|---|---|---|---|---|---|
| GPT-5.6 Sol | $81800.00–$88000.00 | -3.3% to +4.1% | 56% | $84554.00 | 80.4 | right |
| Claude Opus 5 | $82600.00–$87900.00 | -3.5% to +2.7% | 30% | $85600.00 | 15.2 | wrong |
| Muse Spark 1.1 | $81500.00–$86500.00 | -2.8% to +3.1% | 57% | $83870.00 | 80.1 | right |
| Gemini 1.5 Pro | $82000.00–$86500.00 | -2.2% to +3.2% | 70% | $83850.00 | 82.3 | right |
| Grok 4 | $82500.00–$86500.00 | -2.0% to +2.7% | 48% | $84200.00 | 79.9 | right |
| DeepSeek | $82500.00–$87500.00 | -3.7% to +2.1% | 58% | $85686.00 | 17.7 | wrong |
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 2026-09-23 17:07 UTC. Only settled directional calls count toward accuracy.
| Model | Asked | Still open | No call | Called up | Called down | Right |
|---|---|---|---|---|---|---|
| Grok 4 | 12 | — | 7 | 3 · 2 right | 2 · 2 right | 80% (4/5) |
| Muse Spark 1.1 | 15 | — | 2 | 2 · 2 right | 11 · 8 right | 77% (10/13) |
| Gemini 1.5 Pro | 15 | — | 4 | 5 · 4 right | 6 · 4 right | 73% (8/11) |
| Claude Opus 5 | 12 | — | 2 | 2 · 1 right | 8 · 4 right | 50% (5/10) |
| GPT-5.6 Sol | 9 | — | 3 | 6 · 3 right | — | 50% (3/6) |
| GPT-6 | 6 | — | 2 | — | 4 · 2 right | 50% (2/4) |
| DeepSeek | 15 | — | 6 | 5 · 2 right | 4 · 1 right | 33% (3/9) |
| Kimi | 2 | — | 1 | — | 1 · 0 right | 0% (0/1) |
Every published BTC forecast over 1 day before this question was asked, on 2026-09-23 17:07 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
GPT-5.6 Sol
Result: right
View full reasoning
(1) What I found: CoinDesk's live market page showed Bitcoin at approximately $84,553.62 when retrieved immediately after the 2026-09-23 17:07 UTC baseline, down about 2.12%. Earlier in the session BTC had matched Monday's high near $87,300 before sellers pushed it below $86,000. Source: https://www.coindesk.com/
(2) Market regime: The immediate regime has shifted from breakout acceleration to consolidation and profit-taking. Bitcoin remains well above the pre-breakout $80,000-$82,000 region, so the broader recovery is intact, but intraday momentum has weakened and crypto breadth has narrowed. CoinDesk reported declining trading and futures activity after Monday's surge, suggesting that fresh directional conviction is weaker than during the initial breakout. Sources: https://www.coindesk.com/markets/2026/09/23/bitcoin-consolidates-near-usd86-000-as-rally-narrows-and-brent-slips-below-usd100 and https://www.coindesk.com/
(3) Price range: I use $81,800-$88,000 for the next 24 hours. The lower bound allows a deeper retest of the former breakout region if today's rejection from roughly $87,300 develops into broader profit-taking. The upper bound allows another challenge of this week's highs if institutional demand absorbs the pullback. The range has somewhat more room below the current price because short-term momentum has deteriorated after BTC failed to sustain the $87,000 area. Sources: https://www.coindesk.com/price/bitcoin and https://www.coindesk.com/
(4) Catalysts inside the window: Institutional flows remain an important positive counterweight. Farside Investors recorded $999.0 million of U.S. spot Bitcoin ETF net inflows on September 21 and another $364.4 million on September 22. At the same time, derivatives positioning is becoming more important ahead of Friday's quarterly options expiration, with CoinDesk reporting roughly $16 billion of Bitcoin options and nearly $18 billion across Bitcoin and Ether scheduled to expire. Sources: https://farside.co.uk/btc/ and https://www.coindesk.com/markets/2026/09/23/bitcoin-s-usd16-billion-quarterly-options-settlement-arrives-with-a-call-heavy-book
(5) Strongest counter-argument: The bullish case is that the current decline may be ordinary consolidation after an unusually fast breakout rather than the start of a reversal. BTC recently moved above its 50-week moving average and prior May resistance, while ETF inflows remain substantial. A renewed move through roughly $87,300 would weaken the short-term bearish interpretation, whereas sustained trading below roughly $83,000 would suggest the breakout is undergoing a materially deeper retracement. Sources: https://www.coindesk.com/markets/2026/09/21/bitcoin-s-price-has-cleared-a-key-hurdle-that-has-historically-preceded-major-bull-runs and https://farside.co.uk/btc/
(6) Confidence: 56% reflects conflicting timeframes. The 1-hour and 4-hour signals are MILD BEARISH because BTC rejected the $87,300 region and fell more than 2% by the baseline. The one-day signal is NEUTRAL because strong ETF inflows and the larger breakout structure offset weakening short-term momentum. The seven-day signal remains MILD BULLISH while BTC holds well above the pre-breakout region, but options-related positioning and the rapid preceding advance keep confidence modest.
Claude Opus 5
Result: wrong
View full reasoning
(1) What I found: Fortune reported BTC at $85,686.06 at 10:00 a.m. ET (14:00 UTC) on September 23, 2026, down $353.30 from the same time Tuesday, with a market cap near $1.33 trillion. Yahoo Finance said BTC opened at $86,195.28 on Wednesday, flat versus Tuesday's open, and had eased to $85,600.03 by 7:26 a.m. ET. My latest quote is about three hours older than the 17:07 UTC window start, so $85,600 is a close estimate rather than a live print. I have no reliable clock, so answered_at_utc is 'unknown'.
(2) Market regime: BTC is consolidating just below 8-month highs after Monday's short-squeeze breakout (it reached about $86,350 Monday, the highest since January 29, per TheStreet). Fundstrat's Sean Farrell told Yahoo Finance the breakout is credible and that crypto winter is over, while cautioning the path higher will not be linear. The cross-asset backdrop turned less friendly today: Bloomberg reports stocks and bonds falling together as Brent topped $101 and strong US business-activity data plus hawkish comments from Fed Governor Michael Barr pushed yields up. Higher real rates are a headwind for a risk asset that has just run about 12% in a week.
(3) Price range: Recent realized daily volatility of roughly 2.5%-3% implies a band of about $2,200-$2,600 around $85,600. I set $82,600-$87,900, with slightly more room below than above to reflect today's rates-and-oil driven risk-off and the stretched leverage that built during the squeeze. Support sits near the $84,700 area (Tuesday's 24-hour low per Coinbase) and then the $83,000 breakout zone; resistance is Monday's $86,350 high and the $87,000-$87,400 area CoinDesk flagged.
(4) Catalysts in the window: Trump hosts Xi Jinping in Washington, with the state visit beginning at Joint Base Andrews (TheStreet); daily US spot ETF flow prints; continued Fed speakers after Barr's hawkish comments; and oil headlines tied to US-Iran talks at the UN General Assembly, which have been moving risk appetite all week.
(5) Counter-argument: The trend is intact and Monday's reclaim of the 50-week moving average (CoinDesk) plus strong ETF inflows argue for another push toward $90,000; a constructive summit outcome could add to risk appetite. Conversely, a break below roughly $84,700 would suggest the breakout is failing and open the $82,000-$83,000 area. The 1-day call is neutral because these forces are close to balanced.
(6) Confidence: 30% reflects a price anchor a few hours old, a genuine tug-of-war between a strong crypto trend and a rates-driven risk-off session, and the noise that dominates one-day crypto moves.
Muse Spark 1.1
Result: right
View full reasoning
(1) What you found, and where: Finnhub reports BTC Current $83,870.7 Open $86,560.36 High $87,278.54 Low $83,500.01 Previous Close $86,560 Change -2689.3 -3.10% 5D +6.62% 1M +9.18% 6M +22.23% YTD -2.92% 1Y -23.89% cap $1.73T. CoinJuice reports $86,537 Sep 23 31.4% below ATH $126,156 median Sep -4.72% 13 years but Sep +10.16% week left. ThePaper reports $83,600 Supertrend support rejected at $87k dipped below $85k from high $87,279 to $84,344. Convex reports $85,308.6 Sep 23 live. CoinDesk reports $85,800 -0.55% 24h $18B quarterly options expiry Friday around $85k +8% Sep +50% Q3. BestCryptoChecker Sep 2026 +9.25% start $78,549.60 close $85,813.50 11 up 12 down. DailyForex Sep 23 bullish upside level $91k highest since Jan.
(2) The current market regime as you read it: Pullback after $87,278.54 high Sep 23 per Finnhub high, low $83,500.01 near $83,600 Supertrend support per ThePaper. From $85,896 Sep 22 high $87,395 to $83,870 -2.3% Sep 23. 5D +6.62% still positive vs Sep 22 +11.82% but fading. CoinDesk $85,800 -0.55% and ThePaper rejection at $87k indicates short liquidation rally lost traction per ThePaper. Regime mildly bearish intraday but neutral 1d due to +10% Sep per CoinJuice.
(3) Price range justification, with the levels and volatility you are using: Anchored to $83,870.7 Finnhub current Sep 23 same window 17:07 UTC. Using day $83,500.01-$87,278.54 Finnhub and $83,600 Supertrend support per ThePaper and $84,344 low per ThePaper and $86,537 CoinJuice and $85,308 Convex and $85,800 CoinDesk. Daily vol ~2% ~$1,700. Lower $81,500 -2.8% below $83,500 low if $83,600 support fails per ThePaper, upper $86,500 +3.1% toward $87,278 high and $86,560 open captures bounce to $86k. Slight downside skew today due to -3.10% intraday but neutral 1d due to options expiry $85k per CoinDesk.
(4) Scheduled or likely catalysts inside the window: Window Sep 23 17:07 UTC 24h to Sep 24 17:07 covers Sep 23 close and Sep 24 open. Catalyst $18B quarterly options expiry Friday around $85k per CoinDesk, Fed speeches Sep 21-27 per HappyCoinNews, ETF demand per CoinJuice. No halving.
(5) The strongest counter-argument, and what would invalidate your call: Bear case: -3.10% below $85k to $83,500 could retrace to $81,500 below $83,600 Supertrend per ThePaper if options expiry pressure. Bull case: $86,500 above $85,800 CoinDesk could squeeze to $87,278 high toward $91k upside level per DailyForex. Invalidation: close below $81k or above $87.5k would negate neutral.
(6) Why your confidence is the number it is: Confidence 57% reflects live $83,870.7 open $86,560.36 high $87,278.54 low $83,500.01 prev $86,560 Sep 23 same day as window start 17:07 UTC, plus ThePaper $83,600 support rejected $87k and $84,344 low same day Sep 23, plus CoinJuice $86,537 Sep 23 and Convex $85,308 Sep 23 and CoinDesk $85,800 -0.55% same day. Multiple same-day live sources at or after baseline. Labeling live because quotes dated Sep 23 at or after window start.
Gemini 1.5 Pro
Result: right
View full reasoning
(1) What you found, and where: I retrieved live market data indicating Bitcoin trading near $83,850 as of 17:07 UTC on September 23, 2026. Coverage from sources like the Economic Times noted massive spot ETF inflows earlier in the week, pushing prices near $87,000, before settling into a short-term intraday consolidation phase.
(2) The current market regime as you read it: The cryptocurrency market is in a digestion phase following a sharp breakout above $86,000, which was initially driven by substantial institutional spot ETF inflows and short liquidations. Traders are currently balancing this strong underlying institutional demand against near-term overbought technical conditions.
(3) Price range justification, with the levels and volatility you are using: I project a 24-hour range of $82,000-$86,500. The recent pullback from the $87,000 highs suggests near-term exhaustion. Support is firmly established in the $82,000 to $83,000 zone, while the $86,500 upper bound leaves room for a momentum retest of recent highs if institutional buying pressure resumes.
(4) Scheduled or likely catalysts inside the window: Price action over the next 24 hours will largely be dictated by the latest daily spot ETF flow reports, derivatives market open interest adjustments, and potential shifts in macroeconomic risk sentiment stemming from broader equity market movements.
(5) The strongest counter-argument, and what would invalidate your call: The primary risk to this consolidation thesis is a sudden shift in ETF momentum or risk appetite. If net outflows materialize or macroeconomic risk-off sentiment surges, a sharp cascade of leveraged long liquidations could quickly drag Bitcoin below the $82,000 support level.
(6) Why your confidence is the number it is: My confidence is 70%. The fundamental setup remains structurally bullish due to steady institutional participation, but the immediate technical picture suggests choppy, volatile consolidation over a single 24-hour session.
Grok 4
Result: right
View full reasoning
(1) What you found, and where: Live quotes from MarketWatch (CoinDesk index ~$84,084 around 12:47 p.m. EDT), Yahoo Finance (~$84,279), Zacks/CoinMarketCap-aligned sources (~$84,200 range), and exchange data show BTC pulling back from the $87k area. Recent news from CoinDesk, CNBC, BeInCrypto and others documents a sharp rally from ~$75k mid-September lows to an eight-month high near $87,300-$87,400 on Sept 21, driven by ~$999M single-day spot ETF inflows (largest since Oct 2025), multi-day institutional buying, and heavy short liquidations exceeding $600-800M.
(2) The current market regime as you read it: Short-term consolidation after a high-momentum breakout. Price reclaimed the 50-week moving average and delivered a multi-day surge on ETF demand and risk-on flows despite a recent Fed 25bp hike and CLARITY Act failure. Higher-timeframe structure remains constructive with positive weekly/monthly momentum; intraday and 4h action shows digestion of the move with modest selling pressure.
(3) Price range justification, with the levels and volatility you are using: Anchored to the ~$84,200 quote, the 1-day range of $82,500-$86,500 reflects typical post-rally daily volatility (recent sessions have seen $2k-$5k swings). Immediate support clusters near the $83k-$84k zone (prior consolidation and psychological levels); resistance sits at the recent $86.5k-$87.5k highs. Range allows for either mild continuation of the pullback or a bounce that retests the upper end without requiring a new impulse.
(4) Scheduled or likely catalysts inside the window: Residual ETF flow data, potential Fed speaker comments, preliminary PMI readings, and positioning ahead of the larger Deribit quarterly options expiry on Sept 25. No major scheduled macro release is expected to dominate the exact 24-hour window, leaving price action driven more by technical digestion and liquidity.
(5) The strongest counter-argument, and what would invalidate your call: A rapid resumption of heavy ETF inflows or positive risk sentiment could push quickly back toward $87k+, while a broader risk-off move or large long liquidations could break $82.5k support. The neutral short-term stance would be invalidated by a decisive close outside the stated range on elevated volume.
(6) Why your confidence is the number it is: Short-term crypto direction after a 10%+ multi-day rally is inherently noisy; live data confirms the pullback and catalyst backdrop, but 1-day moves are often dominated by positioning rather than new fundamental information, limiting conviction to the mid-40s percent range.
DeepSeek
Result: wrong
View full reasoning
(1) What I found, and where: At the window start, Bitcoin was trading around $85,686, per Fortune's September 23 quote (fortune.com). The session had been volatile: BTC briefly punched above $87,000 before pulling back below $85,000. Binance data showed BTC at $85,974 around 08:48 UTC. Spot Bitcoin ETFs drew $714.75 million on September 22, the fourth consecutive day of inflows, per SoSoValue data. The US flash composite PMI hit 58.4, a five-year high, sending Treasury yields above 5% and pressuring risk assets. Nearly $16 billion in BTC options expire on September 25, with calls representing about 60% of open interest (Deribit data via CoinDesk).
(2) The current market regime: Bitcoin is in a corrective phase within a broader rebound. The rally from July lows near $58,000 to Monday's high of $87,315 was driven largely by short covering and ETF inflows, not organic spot demand. CoinMarketCap's Alice Liu noted that Monday's forced short covering was roughly ten times the value of long liquidations, and that 'the fuel is behind us, not ahead.' The adjusted SOPR (aSOPR) sits at 1.01, barely above breakeven, indicating minimal profit-taking despite the 47% surge from July lows. The daily RSI was 65.31, easing from near-70 levels. The 4-hour Supertrend support at $83,593 is the nearest technical level. Macro headwinds are intensifying: the Fed raised rates to 3.75-4% on September 16, and the hot PMI print has increased the odds of another hike.
(3) Price range justification: I am using a range of $82,500-$87,500, with more room below than above the current quote. The $82,500-$83,000 zone marks a liquidation band identified by CoinGlass, and the 4-hour Supertrend at $83,593 is the first major support. A break below that level opens the door to the $82,500 area. On the upside, $87,000-$87,500 is a heavy resistance zone that BTC failed to hold twice in 48 hours, with a separate liquidation band there. The options expiry on Friday introduces gamma-related volatility, with calls concentrated above current levels. Daily realized volatility is running above 3%, so a $2,500-$3,000 range over 24 hours is consistent with recent behavior.
(4) Scheduled or likely catalysts inside the window: The most immediate catalyst is the aftermath of the US flash PMI print (58.4), which has already sent yields higher and pressured BTC. Treasury yields above 5% remain a headwind. The September 25 options expiry ($16 billion notional) is technically outside the 1-day window but positioning ahead of it can influence price. Middle East peace hopes, anchored by President Trump's 'very good meeting' with Iran, remain a supportive backdrop. ETF flow data for September 23 will be published after the window, so it will not be a catalyst inside the period.
(5) The strongest counter-argument: The bullish case rests on the idea that ETF inflows ($714.75 million on September 22, and nearly $1 billion on September 21) represent genuine institutional accumulation that will absorb selling pressure. If spot demand is stronger than the aSOPR suggests, BTC could hold $85,000 and push back toward $87,000. The counter-argument is that the rally was primarily a short-squeeze, not a demand-driven breakout, and that the hot PMI data materially increases the risk of another rate hike, which would be a significant headwind for risk assets. The low aSOPR could also mean that holders are simply waiting for higher prices to sell, creating a supply overhang. An invalidation of my call would be a decisive reclaim of $87,000 on strong spot volume, which would suggest the rally has a real demand leg.
(6) Why confidence is 58%: The directional case for a mild bearish lean is supported by three factors: the hot PMI data, the failure to hold $87,000, and the short-covering nature of the rally. However, the strong ETF inflows and the supportive Middle East backdrop create real two-way risk. Bitcoin is trading in a tight range with no clear trend on the daily chart, and a 1-day horizon is inherently noisy. A confidence of 58% reflects a modest edge, not a high-conviction call. I would have more confidence in a 7-day bearish lean than a 1-day one.
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